31813980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:144

約数の個数: 192

約数和(自身を含む): 106444800

約数和(自身を除く): 74630820

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 30, 33, 38, 43, 44, 55, 57, 59, 60, 66, 76, 86, 95, 110, 114, 118, 129, 132, 165, 172, 177, 190, 209, 215, 220, 228, 236, 258, 285, 295, 330, 354, 380, 418, 430, 473, 516, 570, 590, 627, 645, 649, 660, 708, 817, 836, 860, 885, 946, 1045, 1121, 1140, 1180, 1254, 1290, 1298, 1419, 1634, 1770, 1892, 1947, 2090, 2242, 2365, 2451, 2508, 2537, 2580, 2596, 2838, 3135, 3245, 3268, 3363, 3540, 3894, 4085, 4180, 4484, 4730, 4902, 5074, 5605, 5676, 6270, 6490, 6726, 7095, 7611, 7788, 8170, 8987, 9460, 9735, 9804, 10148, 11210, 12255, 12331, 12540, 12685, 12980, 13452, 14190, 15222, 16340, 16815, 17974, 19470, 22420, 24510, 24662, 25370, 26961, 27907, 28380, 30444, 33630, 35948, 36993, 38055, 38940, 44935, 48203, 49020, 49324, 50740, 53922, 55814, 61655, 67260, 73986, 76110, 83721, 89870, 96406, 107844, 111628, 123310, 134805, 139535, 144609, 147972, 152220, 167442, 179740, 184965, 192812, 241015, 246620, 269610, 279070, 289218, 334884, 369930, 418605, 482030, 530233, 539220, 558140, 578436, 723045, 739860, 837210, 964060, 1060466, 1446090, 1590699, 1674420, 2120932, 2651165, 2892180, 3181398, 5302330, 6362796, 7953495, 10604660, 15906990, 31813980]

約数ペア:

[(1, 31813980), (2, 15906990), (3, 10604660), (4, 7953495), (5, 6362796), (6, 5302330), (10, 3181398), (11, 2892180), (12, 2651165), (15, 2120932), (19, 1674420), (20, 1590699), (22, 1446090), (30, 1060466), (33, 964060), (38, 837210), (43, 739860), (44, 723045), (55, 578436), (57, 558140), (59, 539220), (60, 530233), (66, 482030), (76, 418605), (86, 369930), (95, 334884), (110, 289218), (114, 279070), (118, 269610), (129, 246620), (132, 241015), (165, 192812), (172, 184965), (177, 179740), (190, 167442), (209, 152220), (215, 147972), (220, 144609), (228, 139535), (236, 134805), (258, 123310), (285, 111628), (295, 107844), (330, 96406), (354, 89870), (380, 83721), (418, 76110), (430, 73986), (473, 67260), (516, 61655), (570, 55814), (590, 53922), (627, 50740), (645, 49324), (649, 49020), (660, 48203), (708, 44935), (817, 38940), (836, 38055), (860, 36993), (885, 35948), (946, 33630), (1045, 30444), (1121, 28380), (1140, 27907), (1180, 26961), (1254, 25370), (1290, 24662), (1298, 24510), (1419, 22420), (1634, 19470), (1770, 17974), (1892, 16815), (1947, 16340), (2090, 15222), (2242, 14190), (2365, 13452), (2451, 12980), (2508, 12685), (2537, 12540), (2580, 12331), (2596, 12255), (2838, 11210), (3135, 10148), (3245, 9804), (3268, 9735), (3363, 9460), (3540, 8987), (3894, 8170), (4085, 7788), (4180, 7611), (4484, 7095), (4730, 6726), (4902, 6490), (5074, 6270), (5605, 5676)]