647978368

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{2237}}^1$

素因数の和:2355

約数の個数: 64

約数和(自身を含む): 1351393920

約数和(自身を除く): 703415552

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 73, 124, 128, 146, 248, 292, 496, 584, 992, 1168, 1984, 2237, 2263, 2336, 3968, 4474, 4526, 4672, 8948, 9052, 9344, 17896, 18104, 35792, 36208, 69347, 71584, 72416, 138694, 143168, 144832, 163301, 277388, 286336, 289664, 326602, 554776, 653204, 1109552, 1306408, 2219104, 2612816, 4438208, 5062331, 5225632, 8876416, 10124662, 10451264, 20249324, 20902528, 40498648, 80997296, 161994592, 323989184, 647978368]

約数ペア:

[(1, 647978368), (2, 323989184), (4, 161994592), (8, 80997296), (16, 40498648), (31, 20902528), (32, 20249324), (62, 10451264), (64, 10124662), (73, 8876416), (124, 5225632), (128, 5062331), (146, 4438208), (248, 2612816), (292, 2219104), (496, 1306408), (584, 1109552), (992, 653204), (1168, 554776), (1984, 326602), (2237, 289664), (2263, 286336), (2336, 277388), (3968, 163301), (4474, 144832), (4526, 143168), (4672, 138694), (8948, 72416), (9052, 71584), (9344, 69347), (17896, 36208), (18104, 35792)]