13481000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:112

約数の個数: 128

約数和(自身を含む): 36560160

約数和(自身を除く): 23079160

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 25, 26, 34, 40, 50, 52, 61, 65, 68, 85, 100, 104, 122, 125, 130, 136, 170, 200, 221, 244, 250, 260, 305, 325, 340, 425, 442, 488, 500, 520, 610, 650, 680, 793, 850, 884, 1000, 1037, 1105, 1220, 1300, 1525, 1586, 1625, 1700, 1768, 2074, 2125, 2210, 2440, 2600, 3050, 3172, 3250, 3400, 3965, 4148, 4250, 4420, 5185, 5525, 6100, 6344, 6500, 7625, 7930, 8296, 8500, 8840, 10370, 11050, 12200, 13000, 13481, 15250, 15860, 17000, 19825, 20740, 22100, 25925, 26962, 27625, 30500, 31720, 39650, 41480, 44200, 51850, 53924, 55250, 61000, 67405, 79300, 99125, 103700, 107848, 110500, 129625, 134810, 158600, 198250, 207400, 221000, 259250, 269620, 337025, 396500, 518500, 539240, 674050, 793000, 1037000, 1348100, 1685125, 2696200, 3370250, 6740500, 13481000]

約数ペア:

[(1, 13481000), (2, 6740500), (4, 3370250), (5, 2696200), (8, 1685125), (10, 1348100), (13, 1037000), (17, 793000), (20, 674050), (25, 539240), (26, 518500), (34, 396500), (40, 337025), (50, 269620), (52, 259250), (61, 221000), (65, 207400), (68, 198250), (85, 158600), (100, 134810), (104, 129625), (122, 110500), (125, 107848), (130, 103700), (136, 99125), (170, 79300), (200, 67405), (221, 61000), (244, 55250), (250, 53924), (260, 51850), (305, 44200), (325, 41480), (340, 39650), (425, 31720), (442, 30500), (488, 27625), (500, 26962), (520, 25925), (610, 22100), (650, 20740), (680, 19825), (793, 17000), (850, 15860), (884, 15250), (1000, 13481), (1037, 13000), (1105, 12200), (1220, 11050), (1300, 10370), (1525, 8840), (1586, 8500), (1625, 8296), (1700, 7930), (1768, 7625), (2074, 6500), (2125, 6344), (2210, 6100), (2440, 5525), (2600, 5185), (3050, 4420), (3172, 4250), (3250, 4148), (3400, 3965)]