161633380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{13721}}^1$

素因数の和:13780

約数の個数: 48

約数和(自身を含む): 368847360

約数和(自身を除く): 207213980

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 13721, 27442, 54884, 68605, 137210, 260699, 274420, 425351, 521398, 850702, 1042796, 1303495, 1701404, 2126755, 2606990, 4253510, 5213980, 8081669, 8507020, 16163338, 32326676, 40408345, 80816690, 161633380]

約数ペア:

[(1, 161633380), (2, 80816690), (4, 40408345), (5, 32326676), (10, 16163338), (19, 8507020), (20, 8081669), (31, 5213980), (38, 4253510), (62, 2606990), (76, 2126755), (95, 1701404), (124, 1303495), (155, 1042796), (190, 850702), (310, 521398), (380, 425351), (589, 274420), (620, 260699), (1178, 137210), (2356, 68605), (2945, 54884), (5890, 27442), (11780, 13721)]