71891640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{691}}^1$

素因数の和:742

約数の個数: 144

約数和(自身を含む): 248559480

約数和(自身を除く): 176667840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 255, 289, 306, 340, 360, 408, 510, 578, 612, 680, 691, 765, 867, 1020, 1156, 1224, 1382, 1445, 1530, 1734, 2040, 2073, 2312, 2601, 2764, 2890, 3060, 3455, 3468, 4146, 4335, 5202, 5528, 5780, 6120, 6219, 6910, 6936, 8292, 8670, 10365, 10404, 11560, 11747, 12438, 13005, 13820, 16584, 17340, 20730, 20808, 23494, 24876, 26010, 27640, 31095, 34680, 35241, 41460, 46988, 49752, 52020, 58735, 62190, 70482, 82920, 93976, 104040, 105723, 117470, 124380, 140964, 176205, 199699, 211446, 234940, 248760, 281928, 352410, 399398, 422892, 469880, 528615, 599097, 704820, 798796, 845784, 998495, 1057230, 1198194, 1409640, 1597592, 1797291, 1996990, 2114460, 2396388, 2995485, 3594582, 3993980, 4228920, 4792776, 5990970, 7189164, 7987960, 8986455, 11981940, 14378328, 17972910, 23963880, 35945820, 71891640]

約数ペア:

[(1, 71891640), (2, 35945820), (3, 23963880), (4, 17972910), (5, 14378328), (6, 11981940), (8, 8986455), (9, 7987960), (10, 7189164), (12, 5990970), (15, 4792776), (17, 4228920), (18, 3993980), (20, 3594582), (24, 2995485), (30, 2396388), (34, 2114460), (36, 1996990), (40, 1797291), (45, 1597592), (51, 1409640), (60, 1198194), (68, 1057230), (72, 998495), (85, 845784), (90, 798796), (102, 704820), (120, 599097), (136, 528615), (153, 469880), (170, 422892), (180, 399398), (204, 352410), (255, 281928), (289, 248760), (306, 234940), (340, 211446), (360, 199699), (408, 176205), (510, 140964), (578, 124380), (612, 117470), (680, 105723), (691, 104040), (765, 93976), (867, 82920), (1020, 70482), (1156, 62190), (1224, 58735), (1382, 52020), (1445, 49752), (1530, 46988), (1734, 41460), (2040, 35241), (2073, 34680), (2312, 31095), (2601, 27640), (2764, 26010), (2890, 24876), (3060, 23494), (3455, 20808), (3468, 20730), (4146, 17340), (4335, 16584), (5202, 13820), (5528, 13005), (5780, 12438), (6120, 11747), (6219, 11560), (6910, 10404), (6936, 10365), (8292, 8670)]