21437040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{499}}^1$

素因数の和:694

約数の個数: 80

約数和(自身を含む): 66960000

約数和(自身を除く): 45522960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 179, 240, 358, 499, 537, 716, 895, 998, 1074, 1432, 1497, 1790, 1996, 2148, 2495, 2685, 2864, 2994, 3580, 3992, 4296, 4990, 5370, 5988, 7160, 7485, 7984, 8592, 9980, 10740, 11976, 14320, 14970, 19960, 21480, 23952, 29940, 39920, 42960, 59880, 89321, 119760, 178642, 267963, 357284, 446605, 535926, 714568, 893210, 1071852, 1339815, 1429136, 1786420, 2143704, 2679630, 3572840, 4287408, 5359260, 7145680, 10718520, 21437040]

約数ペア:

[(1, 21437040), (2, 10718520), (3, 7145680), (4, 5359260), (5, 4287408), (6, 3572840), (8, 2679630), (10, 2143704), (12, 1786420), (15, 1429136), (16, 1339815), (20, 1071852), (24, 893210), (30, 714568), (40, 535926), (48, 446605), (60, 357284), (80, 267963), (120, 178642), (179, 119760), (240, 89321), (358, 59880), (499, 42960), (537, 39920), (716, 29940), (895, 23952), (998, 21480), (1074, 19960), (1432, 14970), (1497, 14320), (1790, 11976), (1996, 10740), (2148, 9980), (2495, 8592), (2685, 7984), (2864, 7485), (2994, 7160), (3580, 5988), (3992, 5370), (4296, 4990)]