20560020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:681

約数の個数: 96

約数和(自身を含む): 63541632

約数和(自身を除く): 42981612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 43, 52, 60, 65, 78, 86, 129, 130, 156, 172, 195, 215, 258, 260, 390, 430, 516, 559, 613, 645, 780, 860, 1118, 1226, 1290, 1677, 1839, 2236, 2452, 2580, 2795, 3065, 3354, 3678, 5590, 6130, 6708, 7356, 7969, 8385, 9195, 11180, 12260, 15938, 16770, 18390, 23907, 26359, 31876, 33540, 36780, 39845, 47814, 52718, 79077, 79690, 95628, 105436, 119535, 131795, 158154, 159380, 239070, 263590, 316308, 342667, 395385, 478140, 527180, 685334, 790770, 1028001, 1370668, 1581540, 1713335, 2056002, 3426670, 4112004, 5140005, 6853340, 10280010, 20560020]

約数ペア:

[(1, 20560020), (2, 10280010), (3, 6853340), (4, 5140005), (5, 4112004), (6, 3426670), (10, 2056002), (12, 1713335), (13, 1581540), (15, 1370668), (20, 1028001), (26, 790770), (30, 685334), (39, 527180), (43, 478140), (52, 395385), (60, 342667), (65, 316308), (78, 263590), (86, 239070), (129, 159380), (130, 158154), (156, 131795), (172, 119535), (195, 105436), (215, 95628), (258, 79690), (260, 79077), (390, 52718), (430, 47814), (516, 39845), (559, 36780), (613, 33540), (645, 31876), (780, 26359), (860, 23907), (1118, 18390), (1226, 16770), (1290, 15938), (1677, 12260), (1839, 11180), (2236, 9195), (2452, 8385), (2580, 7969), (2795, 7356), (3065, 6708), (3354, 6130), (3678, 5590)]