280486960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{953}}^1$

素因数の和:1262

約数の個数: 80

約数和(自身を含む): 705517344

約数和(自身を除く): 425030384

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 283, 520, 566, 953, 1040, 1132, 1415, 1906, 2264, 2830, 3679, 3812, 4528, 4765, 5660, 7358, 7624, 9530, 11320, 12389, 14716, 15248, 18395, 19060, 22640, 24778, 29432, 36790, 38120, 49556, 58864, 61945, 73580, 76240, 99112, 123890, 147160, 198224, 247780, 269699, 294320, 495560, 539398, 991120, 1078796, 1348495, 2157592, 2696990, 3506087, 4315184, 5393980, 7012174, 10787960, 14024348, 17530435, 21575920, 28048696, 35060870, 56097392, 70121740, 140243480, 280486960]

約数ペア:

[(1, 280486960), (2, 140243480), (4, 70121740), (5, 56097392), (8, 35060870), (10, 28048696), (13, 21575920), (16, 17530435), (20, 14024348), (26, 10787960), (40, 7012174), (52, 5393980), (65, 4315184), (80, 3506087), (104, 2696990), (130, 2157592), (208, 1348495), (260, 1078796), (283, 991120), (520, 539398), (566, 495560), (953, 294320), (1040, 269699), (1132, 247780), (1415, 198224), (1906, 147160), (2264, 123890), (2830, 99112), (3679, 76240), (3812, 73580), (4528, 61945), (4765, 58864), (5660, 49556), (7358, 38120), (7624, 36790), (9530, 29432), (11320, 24778), (12389, 22640), (14716, 19060), (15248, 18395)]