144640420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{13723}}^1$

素因数の和:13780

約数の個数: 48

約数和(自身を含む): 332011008

約数和(自身を除く): 187370588

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 2108, 2635, 5270, 10540, 13723, 27446, 54892, 68615, 137230, 233291, 274460, 425413, 466582, 850826, 933164, 1166455, 1701652, 2127065, 2332910, 4254130, 4665820, 7232021, 8508260, 14464042, 28928084, 36160105, 72320210, 144640420]

約数ペア:

[(1, 144640420), (2, 72320210), (4, 36160105), (5, 28928084), (10, 14464042), (17, 8508260), (20, 7232021), (31, 4665820), (34, 4254130), (62, 2332910), (68, 2127065), (85, 1701652), (124, 1166455), (155, 933164), (170, 850826), (310, 466582), (340, 425413), (527, 274460), (620, 233291), (1054, 137230), (2108, 68615), (2635, 54892), (5270, 27446), (10540, 13723)]