1625339920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{655379}}^1$

素因数の和:655423

約数の個数: 40

約数和(自身を含む): 3900821760

約数和(自身を除く): 2275481840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 655379, 1310758, 2621516, 3276895, 5243032, 6553790, 10486064, 13107580, 20316749, 26215160, 40633498, 52430320, 81266996, 101583745, 162533992, 203167490, 325067984, 406334980, 812669960, 1625339920]

約数ペア:

[(1, 1625339920), (2, 812669960), (4, 406334980), (5, 325067984), (8, 203167490), (10, 162533992), (16, 101583745), (20, 81266996), (31, 52430320), (40, 40633498), (62, 26215160), (80, 20316749), (124, 13107580), (155, 10486064), (248, 6553790), (310, 5243032), (496, 3276895), (620, 2621516), (1240, 1310758), (2480, 655379)]