28040520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1291}}^1$

素因数の和:1486

約数の個数: 64

約数和(自身を含む): 84651840

約数和(自身を除く): 56611320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181, 362, 543, 724, 905, 1086, 1291, 1448, 1810, 2172, 2582, 2715, 3620, 3873, 4344, 5164, 5430, 6455, 7240, 7746, 10328, 10860, 12910, 15492, 19365, 21720, 25820, 30984, 38730, 51640, 77460, 154920, 233671, 467342, 701013, 934684, 1168355, 1402026, 1869368, 2336710, 2804052, 3505065, 4673420, 5608104, 7010130, 9346840, 14020260, 28040520]

約数ペア:

[(1, 28040520), (2, 14020260), (3, 9346840), (4, 7010130), (5, 5608104), (6, 4673420), (8, 3505065), (10, 2804052), (12, 2336710), (15, 1869368), (20, 1402026), (24, 1168355), (30, 934684), (40, 701013), (60, 467342), (120, 233671), (181, 154920), (362, 77460), (543, 51640), (724, 38730), (905, 30984), (1086, 25820), (1291, 21720), (1448, 19365), (1810, 15492), (2172, 12910), (2582, 10860), (2715, 10328), (3620, 7746), (3873, 7240), (4344, 6455), (5164, 5430)]