13122320

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2689}}^1$

素因数の和:2763

約数の個数: 40

約数和(自身を含む): 31021080

約数和(自身を除く): 17898760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 2689, 4880, 5378, 10756, 13445, 21512, 26890, 43024, 53780, 107560, 164029, 215120, 328058, 656116, 820145, 1312232, 1640290, 2624464, 3280580, 6561160, 13122320]

約数ペア:

[(1, 13122320), (2, 6561160), (4, 3280580), (5, 2624464), (8, 1640290), (10, 1312232), (16, 820145), (20, 656116), (40, 328058), (61, 215120), (80, 164029), (122, 107560), (244, 53780), (305, 43024), (488, 26890), (610, 21512), (976, 13445), (1220, 10756), (2440, 5378), (2689, 4880)]