215683120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{86969}}^1$

素因数の和:87013

約数の個数: 40

約数和(自身を含む): 517645440

約数和(自身を除く): 301962320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 86969, 173938, 347876, 434845, 695752, 869690, 1391504, 1739380, 2696039, 3478760, 5392078, 6957520, 10784156, 13480195, 21568312, 26960390, 43136624, 53920780, 107841560, 215683120]

約数ペア:

[(1, 215683120), (2, 107841560), (4, 53920780), (5, 43136624), (8, 26960390), (10, 21568312), (16, 13480195), (20, 10784156), (31, 6957520), (40, 5392078), (62, 3478760), (80, 2696039), (124, 1739380), (155, 1391504), (248, 869690), (310, 695752), (496, 434845), (620, 347876), (1240, 173938), (2480, 86969)]