87681020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:363

約数の個数: 96

約数和(自身を含む): 220631040

約数和(自身を除く): 132950020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 89, 124, 140, 155, 178, 217, 227, 310, 356, 434, 445, 454, 620, 623, 868, 890, 908, 1085, 1135, 1246, 1589, 1780, 2170, 2270, 2492, 2759, 3115, 3178, 4340, 4540, 5518, 6230, 6356, 7037, 7945, 11036, 12460, 13795, 14074, 15890, 19313, 20203, 27590, 28148, 31780, 35185, 38626, 40406, 49259, 55180, 70370, 77252, 80812, 96565, 98518, 101015, 140740, 141421, 193130, 197036, 202030, 246295, 282842, 386260, 404060, 492590, 565684, 626293, 707105, 985180, 1252586, 1414210, 2505172, 2828420, 3131465, 4384051, 6262930, 8768102, 12525860, 17536204, 21920255, 43840510, 87681020]

約数ペア:

[(1, 87681020), (2, 43840510), (4, 21920255), (5, 17536204), (7, 12525860), (10, 8768102), (14, 6262930), (20, 4384051), (28, 3131465), (31, 2828420), (35, 2505172), (62, 1414210), (70, 1252586), (89, 985180), (124, 707105), (140, 626293), (155, 565684), (178, 492590), (217, 404060), (227, 386260), (310, 282842), (356, 246295), (434, 202030), (445, 197036), (454, 193130), (620, 141421), (623, 140740), (868, 101015), (890, 98518), (908, 96565), (1085, 80812), (1135, 77252), (1246, 70370), (1589, 55180), (1780, 49259), (2170, 40406), (2270, 38626), (2492, 35185), (2759, 31780), (3115, 28148), (3178, 27590), (4340, 20203), (4540, 19313), (5518, 15890), (6230, 14074), (6356, 13795), (7037, 12460), (7945, 11036)]