89995990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1031}}^1$

素因数の和:1117

約数の個数: 64

約数和(自身を含む): 196162560

約数和(自身を除く): 106166570

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 43, 58, 70, 86, 145, 203, 215, 290, 301, 406, 430, 602, 1015, 1031, 1247, 1505, 2030, 2062, 2494, 3010, 5155, 6235, 7217, 8729, 10310, 12470, 14434, 17458, 29899, 36085, 43645, 44333, 59798, 72170, 87290, 88666, 149495, 209293, 221665, 298990, 310331, 418586, 443330, 620662, 1046465, 1285657, 1551655, 2092930, 2571314, 3103310, 6428285, 8999599, 12856570, 17999198, 44997995, 89995990]

約数ペア:

[(1, 89995990), (2, 44997995), (5, 17999198), (7, 12856570), (10, 8999599), (14, 6428285), (29, 3103310), (35, 2571314), (43, 2092930), (58, 1551655), (70, 1285657), (86, 1046465), (145, 620662), (203, 443330), (215, 418586), (290, 310331), (301, 298990), (406, 221665), (430, 209293), (602, 149495), (1015, 88666), (1031, 87290), (1247, 72170), (1505, 59798), (2030, 44333), (2062, 43645), (2494, 36085), (3010, 29899), (5155, 17458), (6235, 14434), (7217, 12470), (8729, 10310)]