180641960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{145679}}^1$

素因数の和:145721

約数の個数: 32

約数和(自身を含む): 419558400

約数和(自身を除く): 238916440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 145679, 291358, 582716, 728395, 1165432, 1456790, 2913580, 4516049, 5827160, 9032098, 18064196, 22580245, 36128392, 45160490, 90320980, 180641960]

約数ペア:

[(1, 180641960), (2, 90320980), (4, 45160490), (5, 36128392), (8, 22580245), (10, 18064196), (20, 9032098), (31, 5827160), (40, 4516049), (62, 2913580), (124, 1456790), (155, 1165432), (248, 728395), (310, 582716), (620, 291358), (1240, 145679)]