79900020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:132

約数の個数: 240

約数和(自身を含む): 271907328

約数和(自身を除く): 192007308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 37, 43, 45, 54, 60, 62, 74, 81, 86, 90, 93, 108, 111, 124, 129, 135, 148, 155, 162, 172, 180, 185, 186, 215, 222, 258, 270, 279, 310, 324, 333, 370, 372, 387, 405, 430, 444, 465, 516, 540, 555, 558, 620, 645, 666, 740, 774, 810, 837, 860, 930, 999, 1110, 1116, 1147, 1161, 1290, 1332, 1333, 1395, 1548, 1591, 1620, 1665, 1674, 1860, 1935, 1998, 2220, 2294, 2322, 2511, 2580, 2666, 2790, 2997, 3182, 3330, 3348, 3441, 3483, 3870, 3996, 3999, 4185, 4588, 4644, 4773, 4995, 5022, 5332, 5580, 5735, 5805, 5994, 6364, 6660, 6665, 6882, 6966, 7740, 7955, 7998, 8370, 9546, 9990, 10044, 10323, 11470, 11610, 11988, 11997, 12555, 13330, 13764, 13932, 14319, 14985, 15910, 15996, 16740, 17205, 17415, 19092, 19980, 19995, 20646, 22940, 23220, 23865, 23994, 25110, 26660, 28638, 29970, 30969, 31820, 34410, 34830, 35991, 39990, 41292, 42957, 47730, 47988, 49321, 50220, 51615, 57276, 59940, 59985, 61938, 68820, 69660, 71595, 71982, 79980, 85914, 92907, 95460, 98642, 103230, 107973, 119970, 123876, 128871, 143190, 143964, 147963, 154845, 171828, 179955, 185814, 197284, 206460, 214785, 215946, 239940, 246605, 257742, 286380, 295926, 309690, 359910, 371628, 429570, 431892, 443889, 464535, 493210, 515484, 539865, 591852, 619380, 644355, 719820, 739815, 859140, 887778, 929070, 986420, 1079730, 1288710, 1331667, 1479630, 1775556, 1858140, 2159460, 2219445, 2577420, 2663334, 2959260, 3995001, 4438890, 5326668, 6658335, 7990002, 8877780, 13316670, 15980004, 19975005, 26633340, 39950010, 79900020]

約数ペア:

[(1, 79900020), (2, 39950010), (3, 26633340), (4, 19975005), (5, 15980004), (6, 13316670), (9, 8877780), (10, 7990002), (12, 6658335), (15, 5326668), (18, 4438890), (20, 3995001), (27, 2959260), (30, 2663334), (31, 2577420), (36, 2219445), (37, 2159460), (43, 1858140), (45, 1775556), (54, 1479630), (60, 1331667), (62, 1288710), (74, 1079730), (81, 986420), (86, 929070), (90, 887778), (93, 859140), (108, 739815), (111, 719820), (124, 644355), (129, 619380), (135, 591852), (148, 539865), (155, 515484), (162, 493210), (172, 464535), (180, 443889), (185, 431892), (186, 429570), (215, 371628), (222, 359910), (258, 309690), (270, 295926), (279, 286380), (310, 257742), (324, 246605), (333, 239940), (370, 215946), (372, 214785), (387, 206460), (405, 197284), (430, 185814), (444, 179955), (465, 171828), (516, 154845), (540, 147963), (555, 143964), (558, 143190), (620, 128871), (645, 123876), (666, 119970), (740, 107973), (774, 103230), (810, 98642), (837, 95460), (860, 92907), (930, 85914), (999, 79980), (1110, 71982), (1116, 71595), (1147, 69660), (1161, 68820), (1290, 61938), (1332, 59985), (1333, 59940), (1395, 57276), (1548, 51615), (1591, 50220), (1620, 49321), (1665, 47988), (1674, 47730), (1860, 42957), (1935, 41292), (1998, 39990), (2220, 35991), (2294, 34830), (2322, 34410), (2511, 31820), (2580, 30969), (2666, 29970), (2790, 28638), (2997, 26660), (3182, 25110), (3330, 23994), (3348, 23865), (3441, 23220), (3483, 22940), (3870, 20646), (3996, 19995), (3999, 19980), (4185, 19092), (4588, 17415), (4644, 17205), (4773, 16740), (4995, 15996), (5022, 15910), (5332, 14985), (5580, 14319), (5735, 13932), (5805, 13764), (5994, 13330), (6364, 12555), (6660, 11997), (6665, 11988), (6882, 11610), (6966, 11470), (7740, 10323), (7955, 10044), (7998, 9990), (8370, 9546)]