408040840

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{1709}}^1$

素因数の和:1894

約数の個数: 64

約数和(自身を含む): 945561600

約数和(自身を除く): 537520760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 127, 188, 235, 254, 376, 470, 508, 635, 940, 1016, 1270, 1709, 1880, 2540, 3418, 5080, 5969, 6836, 8545, 11938, 13672, 17090, 23876, 29845, 34180, 47752, 59690, 68360, 80323, 119380, 160646, 217043, 238760, 321292, 401615, 434086, 642584, 803230, 868172, 1085215, 1606460, 1736344, 2170430, 3212920, 4340860, 8681720, 10201021, 20402042, 40804084, 51005105, 81608168, 102010210, 204020420, 408040840]

約数ペア:

[(1, 408040840), (2, 204020420), (4, 102010210), (5, 81608168), (8, 51005105), (10, 40804084), (20, 20402042), (40, 10201021), (47, 8681720), (94, 4340860), (127, 3212920), (188, 2170430), (235, 1736344), (254, 1606460), (376, 1085215), (470, 868172), (508, 803230), (635, 642584), (940, 434086), (1016, 401615), (1270, 321292), (1709, 238760), (1880, 217043), (2540, 160646), (3418, 119380), (5080, 80323), (5969, 68360), (6836, 59690), (8545, 47752), (11938, 34180), (13672, 29845), (17090, 23876)]