215008520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{316189}}^1$

素因数の和:316217

約数の個数: 32

約数和(自身を含む): 512227800

約数和(自身を除く): 297219280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 316189, 632378, 1264756, 1580945, 2529512, 3161890, 5375213, 6323780, 10750426, 12647560, 21500852, 26876065, 43001704, 53752130, 107504260, 215008520]

約数ペア:

[(1, 215008520), (2, 107504260), (4, 53752130), (5, 43001704), (8, 26876065), (10, 21500852), (17, 12647560), (20, 10750426), (34, 6323780), (40, 5375213), (68, 3161890), (85, 2529512), (136, 1580945), (170, 1264756), (340, 632378), (680, 316189)]