71922680

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^2\times {\mathrm{227}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 164385720

約数和(自身を除く): 92463040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 227, 356, 445, 454, 712, 890, 908, 1135, 1780, 1816, 2270, 3560, 4540, 7921, 9080, 15842, 20203, 31684, 39605, 40406, 63368, 79210, 80812, 101015, 158420, 161624, 202030, 316840, 404060, 808120, 1798067, 3596134, 7192268, 8990335, 14384536, 17980670, 35961340, 71922680]

約数ペア:

[(1, 71922680), (2, 35961340), (4, 17980670), (5, 14384536), (8, 8990335), (10, 7192268), (20, 3596134), (40, 1798067), (89, 808120), (178, 404060), (227, 316840), (356, 202030), (445, 161624), (454, 158420), (712, 101015), (890, 80812), (908, 79210), (1135, 63368), (1780, 40406), (1816, 39605), (2270, 31684), (3560, 20203), (4540, 15842), (7921, 9080)]