18620460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 60383232

約数和(自身を除く): 41762772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 47, 60, 62, 71, 90, 93, 94, 124, 141, 142, 155, 180, 186, 188, 213, 235, 279, 282, 284, 310, 355, 372, 423, 426, 465, 470, 558, 564, 620, 639, 705, 710, 846, 852, 930, 940, 1065, 1116, 1278, 1395, 1410, 1420, 1457, 1692, 1860, 2115, 2130, 2201, 2556, 2790, 2820, 2914, 3195, 3337, 4230, 4260, 4371, 4402, 5580, 5828, 6390, 6603, 6674, 7285, 8460, 8742, 8804, 10011, 11005, 12780, 13113, 13206, 13348, 14570, 16685, 17484, 19809, 20022, 21855, 22010, 26226, 26412, 29140, 30033, 33015, 33370, 39618, 40044, 43710, 44020, 50055, 52452, 60066, 65565, 66030, 66740, 79236, 87420, 99045, 100110, 103447, 120132, 131130, 132060, 150165, 198090, 200220, 206894, 262260, 300330, 310341, 396180, 413788, 517235, 600660, 620682, 931023, 1034470, 1241364, 1551705, 1862046, 2068940, 3103410, 3724092, 4655115, 6206820, 9310230, 18620460]

約数ペア:

[(1, 18620460), (2, 9310230), (3, 6206820), (4, 4655115), (5, 3724092), (6, 3103410), (9, 2068940), (10, 1862046), (12, 1551705), (15, 1241364), (18, 1034470), (20, 931023), (30, 620682), (31, 600660), (36, 517235), (45, 413788), (47, 396180), (60, 310341), (62, 300330), (71, 262260), (90, 206894), (93, 200220), (94, 198090), (124, 150165), (141, 132060), (142, 131130), (155, 120132), (180, 103447), (186, 100110), (188, 99045), (213, 87420), (235, 79236), (279, 66740), (282, 66030), (284, 65565), (310, 60066), (355, 52452), (372, 50055), (423, 44020), (426, 43710), (465, 40044), (470, 39618), (558, 33370), (564, 33015), (620, 30033), (639, 29140), (705, 26412), (710, 26226), (846, 22010), (852, 21855), (930, 20022), (940, 19809), (1065, 17484), (1116, 16685), (1278, 14570), (1395, 13348), (1410, 13206), (1420, 13113), (1457, 12780), (1692, 11005), (1860, 10011), (2115, 8804), (2130, 8742), (2201, 8460), (2556, 7285), (2790, 6674), (2820, 6603), (2914, 6390), (3195, 5828), (3337, 5580), (4230, 4402), (4260, 4371)]