65495560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:311

約数の個数: 128

約数和(自身を含む): 174182400

約数和(自身を除く): 108686840

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 31, 34, 40, 52, 62, 65, 68, 85, 104, 124, 130, 136, 155, 170, 221, 239, 248, 260, 310, 340, 403, 442, 478, 520, 527, 620, 680, 806, 884, 956, 1054, 1105, 1195, 1240, 1612, 1768, 1912, 2015, 2108, 2210, 2390, 2635, 3107, 3224, 4030, 4063, 4216, 4420, 4780, 5270, 6214, 6851, 7409, 8060, 8126, 8840, 9560, 10540, 12428, 13702, 14818, 15535, 16120, 16252, 20315, 21080, 24856, 27404, 29636, 31070, 32504, 34255, 37045, 40630, 52819, 54808, 59272, 62140, 68510, 74090, 81260, 96317, 105638, 124280, 125953, 137020, 148180, 162520, 192634, 211276, 251906, 264095, 274040, 296360, 385268, 422552, 481585, 503812, 528190, 629765, 770536, 963170, 1007624, 1056380, 1259530, 1637389, 1926340, 2112760, 2519060, 3274778, 3852680, 5038120, 6549556, 8186945, 13099112, 16373890, 32747780, 65495560]

約数ペア:

[(1, 65495560), (2, 32747780), (4, 16373890), (5, 13099112), (8, 8186945), (10, 6549556), (13, 5038120), (17, 3852680), (20, 3274778), (26, 2519060), (31, 2112760), (34, 1926340), (40, 1637389), (52, 1259530), (62, 1056380), (65, 1007624), (68, 963170), (85, 770536), (104, 629765), (124, 528190), (130, 503812), (136, 481585), (155, 422552), (170, 385268), (221, 296360), (239, 274040), (248, 264095), (260, 251906), (310, 211276), (340, 192634), (403, 162520), (442, 148180), (478, 137020), (520, 125953), (527, 124280), (620, 105638), (680, 96317), (806, 81260), (884, 74090), (956, 68510), (1054, 62140), (1105, 59272), (1195, 54808), (1240, 52819), (1612, 40630), (1768, 37045), (1912, 34255), (2015, 32504), (2108, 31070), (2210, 29636), (2390, 27404), (2635, 24856), (3107, 21080), (3224, 20315), (4030, 16252), (4063, 16120), (4216, 15535), (4420, 14818), (4780, 13702), (5270, 12428), (6214, 10540), (6851, 9560), (7409, 8840), (8060, 8126)]