86958340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{997}}^1$

素因数の和:1109

約数の個数: 72

約数和(自身を含む): 215029080

約数和(自身を除く): 128070740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 890, 980, 997, 1246, 1780, 1994, 2492, 3115, 3988, 4361, 4985, 6230, 6979, 8722, 9970, 12460, 13958, 17444, 19940, 21805, 27916, 34895, 43610, 48853, 69790, 87220, 88733, 97706, 139580, 177466, 195412, 244265, 354932, 443665, 488530, 621131, 887330, 977060, 1242262, 1774660, 2484524, 3105655, 4347917, 6211310, 8695834, 12422620, 17391668, 21739585, 43479170, 86958340]

約数ペア:

[(1, 86958340), (2, 43479170), (4, 21739585), (5, 17391668), (7, 12422620), (10, 8695834), (14, 6211310), (20, 4347917), (28, 3105655), (35, 2484524), (49, 1774660), (70, 1242262), (89, 977060), (98, 887330), (140, 621131), (178, 488530), (196, 443665), (245, 354932), (356, 244265), (445, 195412), (490, 177466), (623, 139580), (890, 97706), (980, 88733), (997, 87220), (1246, 69790), (1780, 48853), (1994, 43610), (2492, 34895), (3115, 27916), (3988, 21805), (4361, 19940), (4985, 17444), (6230, 13958), (6979, 12460), (8722, 9970)]