31004055920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{983}}^1\times {\mathrm{3617}}^1$

素因数の和:4722

約数の個数: 80

約数和(自身を含む): 72839891520

約数和(自身を除く): 41835835600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 983, 1090, 1744, 1966, 2180, 3617, 3932, 4360, 4915, 7234, 7864, 8720, 9830, 14468, 15728, 18085, 19660, 28936, 36170, 39320, 57872, 72340, 78640, 107147, 144680, 214294, 289360, 394253, 428588, 535735, 788506, 857176, 1071470, 1577012, 1714352, 1971265, 2142940, 3154024, 3555511, 3942530, 4285880, 6308048, 7111022, 7885060, 8571760, 14222044, 15770120, 17777555, 28444088, 31540240, 35555110, 56888176, 71110220, 142220440, 284440880, 387550699, 775101398, 1550202796, 1937753495, 3100405592, 3875506990, 6200811184, 7751013980, 15502027960, 31004055920]

約数ペア:

[(1, 31004055920), (2, 15502027960), (4, 7751013980), (5, 6200811184), (8, 3875506990), (10, 3100405592), (16, 1937753495), (20, 1550202796), (40, 775101398), (80, 387550699), (109, 284440880), (218, 142220440), (436, 71110220), (545, 56888176), (872, 35555110), (983, 31540240), (1090, 28444088), (1744, 17777555), (1966, 15770120), (2180, 14222044), (3617, 8571760), (3932, 7885060), (4360, 7111022), (4915, 6308048), (7234, 4285880), (7864, 3942530), (8720, 3555511), (9830, 3154024), (14468, 2142940), (15728, 1971265), (18085, 1714352), (19660, 1577012), (28936, 1071470), (36170, 857176), (39320, 788506), (57872, 535735), (72340, 428588), (78640, 394253), (107147, 289360), (144680, 214294)]