420994880

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^2\times {\mathrm{37}}^2$

素因数の和:153

約数の個数: 126

約数和(自身を含む): 1064629062

約数和(自身を除く): 643634182

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 148, 155, 160, 185, 248, 296, 310, 320, 370, 496, 592, 620, 740, 961, 992, 1147, 1184, 1240, 1369, 1480, 1922, 1984, 2294, 2368, 2480, 2738, 2960, 3844, 4588, 4805, 4960, 5476, 5735, 5920, 6845, 7688, 9176, 9610, 9920, 10952, 11470, 11840, 13690, 15376, 18352, 19220, 21904, 22940, 27380, 30752, 35557, 36704, 38440, 42439, 43808, 45880, 54760, 61504, 71114, 73408, 76880, 84878, 87616, 91760, 109520, 142228, 153760, 169756, 177785, 183520, 212195, 219040, 284456, 307520, 339512, 355570, 367040, 424390, 438080, 568912, 679024, 711140, 848780, 1137824, 1315609, 1358048, 1422280, 1697560, 2275648, 2631218, 2716096, 2844560, 3395120, 5262436, 5689120, 6578045, 6790240, 10524872, 11378240, 13156090, 13580480, 21049744, 26312180, 42099488, 52624360, 84198976, 105248720, 210497440, 420994880]

約数ペア:

[(1, 420994880), (2, 210497440), (4, 105248720), (5, 84198976), (8, 52624360), (10, 42099488), (16, 26312180), (20, 21049744), (31, 13580480), (32, 13156090), (37, 11378240), (40, 10524872), (62, 6790240), (64, 6578045), (74, 5689120), (80, 5262436), (124, 3395120), (148, 2844560), (155, 2716096), (160, 2631218), (185, 2275648), (248, 1697560), (296, 1422280), (310, 1358048), (320, 1315609), (370, 1137824), (496, 848780), (592, 711140), (620, 679024), (740, 568912), (961, 438080), (992, 424390), (1147, 367040), (1184, 355570), (1240, 339512), (1369, 307520), (1480, 284456), (1922, 219040), (1984, 212195), (2294, 183520), (2368, 177785), (2480, 169756), (2738, 153760), (2960, 142228), (3844, 109520), (4588, 91760), (4805, 87616), (4960, 84878), (5476, 76880), (5735, 73408), (5920, 71114), (6845, 61504), (7688, 54760), (9176, 45880), (9610, 43808), (9920, 42439), (10952, 38440), (11470, 36704), (11840, 35557), (13690, 30752), (15376, 27380), (18352, 22940), (19220, 21904)]