138577360

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{389}}^1$

素因数の和:536

約数の個数: 80

約数和(自身を含む): 332813520

約数和(自身を除く): 194236160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 73, 80, 122, 146, 244, 292, 305, 365, 389, 488, 584, 610, 730, 778, 976, 1168, 1220, 1460, 1556, 1945, 2440, 2920, 3112, 3890, 4453, 4880, 5840, 6224, 7780, 8906, 15560, 17812, 22265, 23729, 28397, 31120, 35624, 44530, 47458, 56794, 71248, 89060, 94916, 113588, 118645, 141985, 178120, 189832, 227176, 237290, 283970, 356240, 379664, 454352, 474580, 567940, 949160, 1135880, 1732217, 1898320, 2271760, 3464434, 6928868, 8661085, 13857736, 17322170, 27715472, 34644340, 69288680, 138577360]

約数ペア:

[(1, 138577360), (2, 69288680), (4, 34644340), (5, 27715472), (8, 17322170), (10, 13857736), (16, 8661085), (20, 6928868), (40, 3464434), (61, 2271760), (73, 1898320), (80, 1732217), (122, 1135880), (146, 949160), (244, 567940), (292, 474580), (305, 454352), (365, 379664), (389, 356240), (488, 283970), (584, 237290), (610, 227176), (730, 189832), (778, 178120), (976, 141985), (1168, 118645), (1220, 113588), (1460, 94916), (1556, 89060), (1945, 71248), (2440, 56794), (2920, 47458), (3112, 44530), (3890, 35624), (4453, 31120), (4880, 28397), (5840, 23729), (6224, 22265), (7780, 17812), (8906, 15560)]