405480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 1267200

約数和(自身を除く): 861720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 109, 120, 124, 155, 186, 218, 248, 310, 327, 372, 436, 465, 545, 620, 654, 744, 872, 930, 1090, 1240, 1308, 1635, 1860, 2180, 2616, 3270, 3379, 3720, 4360, 6540, 6758, 10137, 13080, 13516, 16895, 20274, 27032, 33790, 40548, 50685, 67580, 81096, 101370, 135160, 202740, 405480]

約数ペア:

[(1, 405480), (2, 202740), (3, 135160), (4, 101370), (5, 81096), (6, 67580), (8, 50685), (10, 40548), (12, 33790), (15, 27032), (20, 20274), (24, 16895), (30, 13516), (31, 13080), (40, 10137), (60, 6758), (62, 6540), (93, 4360), (109, 3720), (120, 3379), (124, 3270), (155, 2616), (186, 2180), (218, 1860), (248, 1635), (310, 1308), (327, 1240), (372, 1090), (436, 930), (465, 872), (545, 744), (620, 654)]