28130960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2459}}^1$

素因数の和:2496

約数の個数: 80

約数和(自身を含む): 76870080

約数和(自身を除く): 48739120

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2459, 2860, 4918, 5720, 9836, 11440, 12295, 19672, 24590, 27049, 31967, 39344, 49180, 54098, 63934, 98360, 108196, 127868, 135245, 159835, 196720, 216392, 255736, 270490, 319670, 351637, 432784, 511472, 540980, 639340, 703274, 1081960, 1278680, 1406548, 1758185, 2163920, 2557360, 2813096, 3516370, 5626192, 7032740, 14065480, 28130960]

約数ペア:

[(1, 28130960), (2, 14065480), (4, 7032740), (5, 5626192), (8, 3516370), (10, 2813096), (11, 2557360), (13, 2163920), (16, 1758185), (20, 1406548), (22, 1278680), (26, 1081960), (40, 703274), (44, 639340), (52, 540980), (55, 511472), (65, 432784), (80, 351637), (88, 319670), (104, 270490), (110, 255736), (130, 216392), (143, 196720), (176, 159835), (208, 135245), (220, 127868), (260, 108196), (286, 98360), (440, 63934), (520, 54098), (572, 49180), (715, 39344), (880, 31967), (1040, 27049), (1144, 24590), (1430, 19672), (2288, 12295), (2459, 11440), (2860, 9836), (4918, 5720)]