171996990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:135

約数の個数: 256

約数和(自身を含む): 525533184

約数和(自身を除く): 353536194

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 22, 23, 30, 31, 33, 34, 43, 46, 51, 55, 62, 66, 69, 85, 86, 93, 102, 110, 115, 129, 138, 155, 165, 170, 186, 187, 215, 230, 253, 255, 258, 310, 330, 341, 345, 374, 391, 430, 465, 473, 506, 510, 527, 561, 645, 682, 690, 713, 731, 759, 782, 930, 935, 946, 989, 1023, 1054, 1122, 1173, 1265, 1290, 1333, 1419, 1426, 1462, 1518, 1581, 1705, 1870, 1955, 1978, 2046, 2139, 2193, 2346, 2365, 2530, 2635, 2666, 2805, 2838, 2967, 3162, 3410, 3565, 3655, 3795, 3910, 3999, 4278, 4301, 4386, 4730, 4945, 5115, 5270, 5610, 5797, 5865, 5934, 6665, 7095, 7130, 7310, 7590, 7843, 7905, 7998, 8041, 8602, 9890, 10230, 10695, 10879, 10965, 11594, 11730, 12121, 12903, 13330, 14190, 14663, 14835, 15686, 15810, 16082, 16813, 17391, 19995, 21390, 21505, 21758, 21930, 22661, 23529, 24123, 24242, 25806, 28985, 29326, 29670, 30659, 32637, 33626, 34782, 36363, 39215, 39990, 40205, 43010, 43989, 45322, 47058, 48246, 50439, 54395, 57970, 60605, 61318, 64515, 65274, 67983, 72726, 73315, 78430, 80410, 84065, 86955, 87978, 91977, 100878, 108790, 113305, 117645, 120615, 121210, 129030, 133331, 135966, 146630, 153295, 163185, 168130, 173910, 181815, 183954, 184943, 219945, 226610, 235290, 241230, 249271, 252195, 266662, 306590, 326370, 337249, 339915, 363630, 369886, 399993, 439890, 459885, 498542, 504390, 521203, 554829, 666655, 674498, 679830, 747813, 799986, 919770, 924715, 1011747, 1042406, 1109658, 1246355, 1333310, 1495626, 1563609, 1686245, 1849430, 1999965, 2023494, 2492710, 2606015, 2774145, 3127218, 3372490, 3739065, 3999930, 5058735, 5212030, 5548290, 5733233, 7478130, 7818045, 10117470, 11466466, 15636090, 17199699, 28666165, 34399398, 57332330, 85998495, 171996990]

約数ペア:

[(1, 171996990), (2, 85998495), (3, 57332330), (5, 34399398), (6, 28666165), (10, 17199699), (11, 15636090), (15, 11466466), (17, 10117470), (22, 7818045), (23, 7478130), (30, 5733233), (31, 5548290), (33, 5212030), (34, 5058735), (43, 3999930), (46, 3739065), (51, 3372490), (55, 3127218), (62, 2774145), (66, 2606015), (69, 2492710), (85, 2023494), (86, 1999965), (93, 1849430), (102, 1686245), (110, 1563609), (115, 1495626), (129, 1333310), (138, 1246355), (155, 1109658), (165, 1042406), (170, 1011747), (186, 924715), (187, 919770), (215, 799986), (230, 747813), (253, 679830), (255, 674498), (258, 666655), (310, 554829), (330, 521203), (341, 504390), (345, 498542), (374, 459885), (391, 439890), (430, 399993), (465, 369886), (473, 363630), (506, 339915), (510, 337249), (527, 326370), (561, 306590), (645, 266662), (682, 252195), (690, 249271), (713, 241230), (731, 235290), (759, 226610), (782, 219945), (930, 184943), (935, 183954), (946, 181815), (989, 173910), (1023, 168130), (1054, 163185), (1122, 153295), (1173, 146630), (1265, 135966), (1290, 133331), (1333, 129030), (1419, 121210), (1426, 120615), (1462, 117645), (1518, 113305), (1581, 108790), (1705, 100878), (1870, 91977), (1955, 87978), (1978, 86955), (2046, 84065), (2139, 80410), (2193, 78430), (2346, 73315), (2365, 72726), (2530, 67983), (2635, 65274), (2666, 64515), (2805, 61318), (2838, 60605), (2967, 57970), (3162, 54395), (3410, 50439), (3565, 48246), (3655, 47058), (3795, 45322), (3910, 43989), (3999, 43010), (4278, 40205), (4301, 39990), (4386, 39215), (4730, 36363), (4945, 34782), (5115, 33626), (5270, 32637), (5610, 30659), (5797, 29670), (5865, 29326), (5934, 28985), (6665, 25806), (7095, 24242), (7130, 24123), (7310, 23529), (7590, 22661), (7843, 21930), (7905, 21758), (7998, 21505), (8041, 21390), (8602, 19995), (9890, 17391), (10230, 16813), (10695, 16082), (10879, 15810), (10965, 15686), (11594, 14835), (11730, 14663), (12121, 14190), (12903, 13330)]