161437850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{503}}^1$

素因数の和:660

約数の個数: 72

約数和(自身を含む): 352664928

約数和(自身を除く): 191227078

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 131, 175, 245, 262, 350, 490, 503, 655, 917, 1006, 1225, 1310, 1834, 2450, 2515, 3275, 3521, 4585, 5030, 6419, 6550, 7042, 9170, 12575, 12838, 17605, 22925, 24647, 25150, 32095, 35210, 45850, 49294, 64190, 65893, 88025, 123235, 131786, 160475, 176050, 246470, 320950, 329465, 461251, 616175, 658930, 922502, 1232350, 1647325, 2306255, 3228757, 3294650, 4612510, 6457514, 11531275, 16143785, 23062550, 32287570, 80718925, 161437850]

約数ペア:

[(1, 161437850), (2, 80718925), (5, 32287570), (7, 23062550), (10, 16143785), (14, 11531275), (25, 6457514), (35, 4612510), (49, 3294650), (50, 3228757), (70, 2306255), (98, 1647325), (131, 1232350), (175, 922502), (245, 658930), (262, 616175), (350, 461251), (490, 329465), (503, 320950), (655, 246470), (917, 176050), (1006, 160475), (1225, 131786), (1310, 123235), (1834, 88025), (2450, 65893), (2515, 64190), (3275, 49294), (3521, 45850), (4585, 35210), (5030, 32095), (6419, 25150), (6550, 24647), (7042, 22925), (9170, 17605), (12575, 12838)]