31205920

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:194

約数の個数: 96

約数和(自身を含む): 77728896

約数和(自身を除く): 46522976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 67, 71, 80, 82, 134, 142, 160, 164, 205, 268, 284, 328, 335, 355, 410, 536, 568, 656, 670, 710, 820, 1072, 1136, 1312, 1340, 1420, 1640, 2144, 2272, 2680, 2747, 2840, 2911, 3280, 4757, 5360, 5494, 5680, 5822, 6560, 9514, 10720, 10988, 11360, 11644, 13735, 14555, 19028, 21976, 23288, 23785, 27470, 29110, 38056, 43952, 46576, 47570, 54940, 58220, 76112, 87904, 93152, 95140, 109880, 116440, 152224, 190280, 195037, 219760, 232880, 380560, 390074, 439520, 465760, 761120, 780148, 975185, 1560296, 1950370, 3120592, 3900740, 6241184, 7801480, 15602960, 31205920]

約数ペア:

[(1, 31205920), (2, 15602960), (4, 7801480), (5, 6241184), (8, 3900740), (10, 3120592), (16, 1950370), (20, 1560296), (32, 975185), (40, 780148), (41, 761120), (67, 465760), (71, 439520), (80, 390074), (82, 380560), (134, 232880), (142, 219760), (160, 195037), (164, 190280), (205, 152224), (268, 116440), (284, 109880), (328, 95140), (335, 93152), (355, 87904), (410, 76112), (536, 58220), (568, 54940), (656, 47570), (670, 46576), (710, 43952), (820, 38056), (1072, 29110), (1136, 27470), (1312, 23785), (1340, 23288), (1420, 21976), (1640, 19028), (2144, 14555), (2272, 13735), (2680, 11644), (2747, 11360), (2840, 10988), (2911, 10720), (3280, 9514), (4757, 6560), (5360, 5822), (5494, 5680)]