61422920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:175

約数の個数: 128

約数和(自身を含む): 158336640

約数和(自身を除く): 96913720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 43, 52, 65, 67, 82, 86, 104, 130, 134, 164, 172, 205, 215, 260, 268, 328, 335, 344, 410, 430, 520, 533, 536, 559, 670, 820, 860, 871, 1066, 1118, 1340, 1640, 1720, 1742, 1763, 2132, 2236, 2665, 2680, 2747, 2795, 2881, 3484, 3526, 4264, 4355, 4472, 5330, 5494, 5590, 5762, 6968, 7052, 8710, 8815, 10660, 10988, 11180, 11524, 13735, 14104, 14405, 17420, 17630, 21320, 21976, 22360, 22919, 23048, 27470, 28810, 34840, 35260, 35711, 37453, 45838, 54940, 57620, 70520, 71422, 74906, 91676, 109880, 114595, 115240, 118121, 142844, 149812, 178555, 183352, 187265, 229190, 236242, 285688, 299624, 357110, 374530, 458380, 472484, 590605, 714220, 749060, 916760, 944968, 1181210, 1428440, 1498120, 1535573, 2362420, 3071146, 4724840, 6142292, 7677865, 12284584, 15355730, 30711460, 61422920]

約数ペア:

[(1, 61422920), (2, 30711460), (4, 15355730), (5, 12284584), (8, 7677865), (10, 6142292), (13, 4724840), (20, 3071146), (26, 2362420), (40, 1535573), (41, 1498120), (43, 1428440), (52, 1181210), (65, 944968), (67, 916760), (82, 749060), (86, 714220), (104, 590605), (130, 472484), (134, 458380), (164, 374530), (172, 357110), (205, 299624), (215, 285688), (260, 236242), (268, 229190), (328, 187265), (335, 183352), (344, 178555), (410, 149812), (430, 142844), (520, 118121), (533, 115240), (536, 114595), (559, 109880), (670, 91676), (820, 74906), (860, 71422), (871, 70520), (1066, 57620), (1118, 54940), (1340, 45838), (1640, 37453), (1720, 35711), (1742, 35260), (1763, 34840), (2132, 28810), (2236, 27470), (2665, 23048), (2680, 22919), (2747, 22360), (2795, 21976), (2881, 21320), (3484, 17630), (3526, 17420), (4264, 14405), (4355, 14104), (4472, 13735), (5330, 11524), (5494, 11180), (5590, 10988), (5762, 10660), (6968, 8815), (7052, 8710)]