21503280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89597}}^1$

素因数の和:89613

約数の個数: 40

約数和(自身を含む): 66660912

約数和(自身を除く): 45157632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89597, 179194, 268791, 358388, 447985, 537582, 716776, 895970, 1075164, 1343955, 1433552, 1791940, 2150328, 2687910, 3583880, 4300656, 5375820, 7167760, 10751640, 21503280]

約数ペア:

[(1, 21503280), (2, 10751640), (3, 7167760), (4, 5375820), (5, 4300656), (6, 3583880), (8, 2687910), (10, 2150328), (12, 1791940), (15, 1433552), (16, 1343955), (20, 1075164), (24, 895970), (30, 716776), (40, 537582), (48, 447985), (60, 358388), (80, 268791), (120, 179194), (240, 89597)]