19756920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 63037440

約数和(自身を除く): 43280520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 47, 60, 62, 93, 94, 113, 120, 124, 141, 155, 186, 188, 226, 235, 248, 282, 310, 339, 372, 376, 452, 465, 470, 564, 565, 620, 678, 705, 744, 904, 930, 940, 1128, 1130, 1240, 1356, 1410, 1457, 1695, 1860, 1880, 2260, 2712, 2820, 2914, 3390, 3503, 3720, 4371, 4520, 5311, 5640, 5828, 6780, 7006, 7285, 8742, 10509, 10622, 11656, 13560, 14012, 14570, 15933, 17484, 17515, 21018, 21244, 21855, 26555, 28024, 29140, 31866, 34968, 35030, 42036, 42488, 43710, 52545, 53110, 58280, 63732, 70060, 79665, 84072, 87420, 105090, 106220, 127464, 140120, 159330, 164641, 174840, 210180, 212440, 318660, 329282, 420360, 493923, 637320, 658564, 823205, 987846, 1317128, 1646410, 1975692, 2469615, 3292820, 3951384, 4939230, 6585640, 9878460, 19756920]

約数ペア:

[(1, 19756920), (2, 9878460), (3, 6585640), (4, 4939230), (5, 3951384), (6, 3292820), (8, 2469615), (10, 1975692), (12, 1646410), (15, 1317128), (20, 987846), (24, 823205), (30, 658564), (31, 637320), (40, 493923), (47, 420360), (60, 329282), (62, 318660), (93, 212440), (94, 210180), (113, 174840), (120, 164641), (124, 159330), (141, 140120), (155, 127464), (186, 106220), (188, 105090), (226, 87420), (235, 84072), (248, 79665), (282, 70060), (310, 63732), (339, 58280), (372, 53110), (376, 52545), (452, 43710), (465, 42488), (470, 42036), (564, 35030), (565, 34968), (620, 31866), (678, 29140), (705, 28024), (744, 26555), (904, 21855), (930, 21244), (940, 21018), (1128, 17515), (1130, 17484), (1240, 15933), (1356, 14570), (1410, 14012), (1457, 13560), (1695, 11656), (1860, 10622), (1880, 10509), (2260, 8742), (2712, 7285), (2820, 7006), (2914, 6780), (3390, 5828), (3503, 5640), (3720, 5311), (4371, 4520)]