72072520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 191600640

約数和(自身を除く): 119528120

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, 248, 260, 263, 310, 340, 403, 442, 520, 526, 527, 620, 680, 806, 884, 1052, 1054, 1105, 1240, 1315, 1612, 1768, 2015, 2104, 2108, 2210, 2630, 2635, 3224, 3419, 4030, 4216, 4420, 4471, 5260, 5270, 6838, 6851, 8060, 8153, 8840, 8942, 10520, 10540, 13676, 13702, 16120, 16306, 17095, 17884, 21080, 22355, 27352, 27404, 32612, 34190, 34255, 35768, 40765, 44710, 54808, 58123, 65224, 68380, 68510, 81530, 89420, 105989, 116246, 136760, 137020, 138601, 163060, 178840, 211978, 232492, 274040, 277202, 290615, 326120, 423956, 464984, 529945, 554404, 581230, 693005, 847912, 1059890, 1108808, 1162460, 1386010, 1801813, 2119780, 2324920, 2772020, 3603626, 4239560, 5544040, 7207252, 9009065, 14414504, 18018130, 36036260, 72072520]

約数ペア:

[(1, 72072520), (2, 36036260), (4, 18018130), (5, 14414504), (8, 9009065), (10, 7207252), (13, 5544040), (17, 4239560), (20, 3603626), (26, 2772020), (31, 2324920), (34, 2119780), (40, 1801813), (52, 1386010), (62, 1162460), (65, 1108808), (68, 1059890), (85, 847912), (104, 693005), (124, 581230), (130, 554404), (136, 529945), (155, 464984), (170, 423956), (221, 326120), (248, 290615), (260, 277202), (263, 274040), (310, 232492), (340, 211978), (403, 178840), (442, 163060), (520, 138601), (526, 137020), (527, 136760), (620, 116246), (680, 105989), (806, 89420), (884, 81530), (1052, 68510), (1054, 68380), (1105, 65224), (1240, 58123), (1315, 54808), (1612, 44710), (1768, 40765), (2015, 35768), (2104, 34255), (2108, 34190), (2210, 32612), (2630, 27404), (2635, 27352), (3224, 22355), (3419, 21080), (4030, 17884), (4216, 17095), (4420, 16306), (4471, 16120), (5260, 13702), (5270, 13676), (6838, 10540), (6851, 10520), (8060, 8942), (8153, 8840)]