280588490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{613}}^1$

素因数の和:1143

約数の個数: 64

約数和(自身を含む): 623863296

約数和(自身を除く): 343274806

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 503, 613, 910, 1006, 1226, 2515, 3065, 3521, 4291, 5030, 6130, 6539, 7042, 7969, 8582, 13078, 15938, 17605, 21455, 32695, 35210, 39845, 42910, 45773, 55783, 65390, 79690, 91546, 111566, 228865, 278915, 308339, 457730, 557830, 616678, 1541695, 2158373, 3083390, 4008407, 4316746, 8016814, 10791865, 20042035, 21583730, 28058849, 40084070, 56117698, 140294245, 280588490]

約数ペア:

[(1, 280588490), (2, 140294245), (5, 56117698), (7, 40084070), (10, 28058849), (13, 21583730), (14, 20042035), (26, 10791865), (35, 8016814), (65, 4316746), (70, 4008407), (91, 3083390), (130, 2158373), (182, 1541695), (455, 616678), (503, 557830), (613, 457730), (910, 308339), (1006, 278915), (1226, 228865), (2515, 111566), (3065, 91546), (3521, 79690), (4291, 65390), (5030, 55783), (6130, 45773), (6539, 42910), (7042, 39845), (7969, 35210), (8582, 32695), (13078, 21455), (15938, 17605)]