72216380

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1399}}^1$

素因数の和:1526

約数の個数: 48

約数和(自身を含む): 158760000

約数和(自身を除く): 86543620

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 89, 116, 145, 178, 290, 356, 445, 580, 890, 1399, 1780, 2581, 2798, 5162, 5596, 6995, 10324, 12905, 13990, 25810, 27980, 40571, 51620, 81142, 124511, 162284, 202855, 249022, 405710, 498044, 622555, 811420, 1245110, 2490220, 3610819, 7221638, 14443276, 18054095, 36108190, 72216380]

約数ペア:

[(1, 72216380), (2, 36108190), (4, 18054095), (5, 14443276), (10, 7221638), (20, 3610819), (29, 2490220), (58, 1245110), (89, 811420), (116, 622555), (145, 498044), (178, 405710), (290, 249022), (356, 202855), (445, 162284), (580, 124511), (890, 81142), (1399, 51620), (1780, 40571), (2581, 27980), (2798, 25810), (5162, 13990), (5596, 12905), (6995, 10324)]