20007090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:216

約数の個数: 96

約数和(自身を含む): 54991872

約数和(自身を除く): 34984782

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 71, 90, 93, 101, 142, 155, 186, 202, 213, 279, 303, 310, 355, 426, 465, 505, 558, 606, 639, 710, 909, 930, 1010, 1065, 1278, 1395, 1515, 1818, 2130, 2201, 2790, 3030, 3131, 3195, 4402, 4545, 6262, 6390, 6603, 7171, 9090, 9393, 11005, 13206, 14342, 15655, 18786, 19809, 21513, 22010, 28179, 31310, 33015, 35855, 39618, 43026, 46965, 56358, 64539, 66030, 71710, 93930, 99045, 107565, 129078, 140895, 198090, 215130, 222301, 281790, 322695, 444602, 645390, 666903, 1111505, 1333806, 2000709, 2223010, 3334515, 4001418, 6669030, 10003545, 20007090]

約数ペア:

[(1, 20007090), (2, 10003545), (3, 6669030), (5, 4001418), (6, 3334515), (9, 2223010), (10, 2000709), (15, 1333806), (18, 1111505), (30, 666903), (31, 645390), (45, 444602), (62, 322695), (71, 281790), (90, 222301), (93, 215130), (101, 198090), (142, 140895), (155, 129078), (186, 107565), (202, 99045), (213, 93930), (279, 71710), (303, 66030), (310, 64539), (355, 56358), (426, 46965), (465, 43026), (505, 39618), (558, 35855), (606, 33015), (639, 31310), (710, 28179), (909, 22010), (930, 21513), (1010, 19809), (1065, 18786), (1278, 15655), (1395, 14342), (1515, 13206), (1818, 11005), (2130, 9393), (2201, 9090), (2790, 7171), (3030, 6603), (3131, 6390), (3195, 6262), (4402, 4545)]