66708380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{54679}}^1$

素因数の和:54749

約数の個数: 24

約数和(自身を含む): 142386720

約数和(自身を除く): 75678340

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 54679, 109358, 218716, 273395, 546790, 1093580, 3335419, 6670838, 13341676, 16677095, 33354190, 66708380]

約数ペア:

[(1, 66708380), (2, 33354190), (4, 16677095), (5, 13341676), (10, 6670838), (20, 3335419), (61, 1093580), (122, 546790), (244, 273395), (305, 218716), (610, 109358), (1220, 54679)]