2017781080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1\times {\mathrm{317}}^1$

素因数の和:641

約数の個数: 128

約数和(自身を含む): 5275238400

約数和(自身を除く): 3257457320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 179, 254, 280, 317, 358, 508, 634, 635, 716, 889, 895, 1016, 1253, 1268, 1270, 1432, 1585, 1778, 1790, 2219, 2506, 2536, 2540, 3170, 3556, 3580, 4438, 4445, 5012, 5080, 6265, 6340, 7112, 7160, 8876, 8890, 10024, 11095, 12530, 12680, 17752, 17780, 22190, 22733, 25060, 35560, 40259, 44380, 45466, 50120, 56743, 80518, 88760, 90932, 113486, 113665, 159131, 161036, 181864, 201295, 226972, 227330, 281813, 283715, 318262, 322072, 397201, 402590, 453944, 454660, 563626, 567430, 636524, 794402, 795655, 805180, 909320, 1127252, 1134860, 1273048, 1409065, 1588804, 1591310, 1610360, 1986005, 2254504, 2269720, 2818130, 3177608, 3182620, 3972010, 5636260, 6365240, 7206361, 7944020, 11272520, 14412722, 15888040, 28825444, 36031805, 50444527, 57650888, 72063610, 100889054, 144127220, 201778108, 252222635, 288254440, 403556216, 504445270, 1008890540, 2017781080]

約数ペア:

[(1, 2017781080), (2, 1008890540), (4, 504445270), (5, 403556216), (7, 288254440), (8, 252222635), (10, 201778108), (14, 144127220), (20, 100889054), (28, 72063610), (35, 57650888), (40, 50444527), (56, 36031805), (70, 28825444), (127, 15888040), (140, 14412722), (179, 11272520), (254, 7944020), (280, 7206361), (317, 6365240), (358, 5636260), (508, 3972010), (634, 3182620), (635, 3177608), (716, 2818130), (889, 2269720), (895, 2254504), (1016, 1986005), (1253, 1610360), (1268, 1591310), (1270, 1588804), (1432, 1409065), (1585, 1273048), (1778, 1134860), (1790, 1127252), (2219, 909320), (2506, 805180), (2536, 795655), (2540, 794402), (3170, 636524), (3556, 567430), (3580, 563626), (4438, 454660), (4445, 453944), (5012, 402590), (5080, 397201), (6265, 322072), (6340, 318262), (7112, 283715), (7160, 281813), (8876, 227330), (8890, 226972), (10024, 201295), (11095, 181864), (12530, 161036), (12680, 159131), (17752, 113665), (17780, 113486), (22190, 90932), (22733, 88760), (25060, 80518), (35560, 56743), (40259, 50120), (44380, 45466)]