81368040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1213}}^1$

素因数の和:1283

約数の個数: 128

約数和(自身を含む): 269216640

約数和(自身を除く): 187848600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 43, 52, 60, 65, 78, 86, 104, 120, 129, 130, 156, 172, 195, 215, 258, 260, 312, 344, 390, 430, 516, 520, 559, 645, 780, 860, 1032, 1118, 1213, 1290, 1560, 1677, 1720, 2236, 2426, 2580, 2795, 3354, 3639, 4472, 4852, 5160, 5590, 6065, 6708, 7278, 8385, 9704, 11180, 12130, 13416, 14556, 15769, 16770, 18195, 22360, 24260, 29112, 31538, 33540, 36390, 47307, 48520, 52159, 63076, 67080, 72780, 78845, 94614, 104318, 126152, 145560, 156477, 157690, 189228, 208636, 236535, 260795, 312954, 315380, 378456, 417272, 473070, 521590, 625908, 630760, 678067, 782385, 946140, 1043180, 1251816, 1356134, 1564770, 1892280, 2034201, 2086360, 2712268, 3129540, 3390335, 4068402, 5424536, 6259080, 6780670, 8136804, 10171005, 13561340, 16273608, 20342010, 27122680, 40684020, 81368040]

約数ペア:

[(1, 81368040), (2, 40684020), (3, 27122680), (4, 20342010), (5, 16273608), (6, 13561340), (8, 10171005), (10, 8136804), (12, 6780670), (13, 6259080), (15, 5424536), (20, 4068402), (24, 3390335), (26, 3129540), (30, 2712268), (39, 2086360), (40, 2034201), (43, 1892280), (52, 1564770), (60, 1356134), (65, 1251816), (78, 1043180), (86, 946140), (104, 782385), (120, 678067), (129, 630760), (130, 625908), (156, 521590), (172, 473070), (195, 417272), (215, 378456), (258, 315380), (260, 312954), (312, 260795), (344, 236535), (390, 208636), (430, 189228), (516, 157690), (520, 156477), (559, 145560), (645, 126152), (780, 104318), (860, 94614), (1032, 78845), (1118, 72780), (1213, 67080), (1290, 63076), (1560, 52159), (1677, 48520), (1720, 47307), (2236, 36390), (2426, 33540), (2580, 31538), (2795, 29112), (3354, 24260), (3639, 22360), (4472, 18195), (4852, 16770), (5160, 15769), (5590, 14556), (6065, 13416), (6708, 12130), (7278, 11180), (8385, 9704)]