20271210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 30822294

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 71, 93, 142, 155, 186, 213, 307, 310, 355, 426, 465, 614, 710, 921, 930, 1065, 1535, 1842, 2130, 2201, 3070, 4402, 4605, 6603, 9210, 9517, 11005, 13206, 19034, 21797, 22010, 28551, 33015, 43594, 47585, 57102, 65391, 66030, 95170, 108985, 130782, 142755, 217970, 285510, 326955, 653910, 675707, 1351414, 2027121, 3378535, 4054242, 6757070, 10135605, 20271210]

約数ペア:

[(1, 20271210), (2, 10135605), (3, 6757070), (5, 4054242), (6, 3378535), (10, 2027121), (15, 1351414), (30, 675707), (31, 653910), (62, 326955), (71, 285510), (93, 217970), (142, 142755), (155, 130782), (186, 108985), (213, 95170), (307, 66030), (310, 65391), (355, 57102), (426, 47585), (465, 43594), (614, 33015), (710, 28551), (921, 22010), (930, 21797), (1065, 19034), (1535, 13206), (1842, 11005), (2130, 9517), (2201, 9210), (3070, 6603), (4402, 4605)]