179499920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{72379}}^1$

素因数の和:72423

約数の個数: 40

約数和(自身を含む): 430805760

約数和(自身を除く): 251305840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 72379, 144758, 289516, 361895, 579032, 723790, 1158064, 1447580, 2243749, 2895160, 4487498, 5790320, 8974996, 11218745, 17949992, 22437490, 35899984, 44874980, 89749960, 179499920]

約数ペア:

[(1, 179499920), (2, 89749960), (4, 44874980), (5, 35899984), (8, 22437490), (10, 17949992), (16, 11218745), (20, 8974996), (31, 5790320), (40, 4487498), (62, 2895160), (80, 2243749), (124, 1447580), (155, 1158064), (248, 723790), (310, 579032), (496, 361895), (620, 289516), (1240, 144758), (2480, 72379)]