1280604544

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{4421}}^1$

素因数の和:4539

約数の個数: 64

約数和(自身を含む): 2670180480

約数和(自身を除く): 1389575936

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 73, 124, 128, 146, 248, 292, 496, 584, 992, 1168, 1984, 2263, 2336, 3968, 4421, 4526, 4672, 8842, 9052, 9344, 17684, 18104, 35368, 36208, 70736, 72416, 137051, 141472, 144832, 274102, 282944, 289664, 322733, 548204, 565888, 645466, 1096408, 1290932, 2192816, 2581864, 4385632, 5163728, 8771264, 10004723, 10327456, 17542528, 20009446, 20654912, 40018892, 41309824, 80037784, 160075568, 320151136, 640302272, 1280604544]

約数ペア:

[(1, 1280604544), (2, 640302272), (4, 320151136), (8, 160075568), (16, 80037784), (31, 41309824), (32, 40018892), (62, 20654912), (64, 20009446), (73, 17542528), (124, 10327456), (128, 10004723), (146, 8771264), (248, 5163728), (292, 4385632), (496, 2581864), (584, 2192816), (992, 1290932), (1168, 1096408), (1984, 645466), (2263, 565888), (2336, 548204), (3968, 322733), (4421, 289664), (4526, 282944), (4672, 274102), (8842, 144832), (9052, 141472), (9344, 137051), (17684, 72416), (18104, 70736), (35368, 36208)]