21565560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{6197}}^1$

素因数の和:6240

約数の個数: 64

約数和(自身を含む): 66938400

約数和(自身を除く): 45372840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 232, 290, 348, 435, 580, 696, 870, 1160, 1740, 3480, 6197, 12394, 18591, 24788, 30985, 37182, 49576, 61970, 74364, 92955, 123940, 148728, 179713, 185910, 247880, 359426, 371820, 539139, 718852, 743640, 898565, 1078278, 1437704, 1797130, 2156556, 2695695, 3594260, 4313112, 5391390, 7188520, 10782780, 21565560]

約数ペア:

[(1, 21565560), (2, 10782780), (3, 7188520), (4, 5391390), (5, 4313112), (6, 3594260), (8, 2695695), (10, 2156556), (12, 1797130), (15, 1437704), (20, 1078278), (24, 898565), (29, 743640), (30, 718852), (40, 539139), (58, 371820), (60, 359426), (87, 247880), (116, 185910), (120, 179713), (145, 148728), (174, 123940), (232, 92955), (290, 74364), (348, 61970), (435, 49576), (580, 37182), (696, 30985), (870, 24788), (1160, 18591), (1740, 12394), (3480, 6197)]