18809140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1129}}^1$

素因数の和:1169

約数の個数: 72

約数和(自身を含む): 48693960

約数和(自身を除く): 29884820

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1129, 1190, 1666, 2258, 2380, 3332, 4165, 4516, 5645, 7903, 8330, 11290, 15806, 16660, 19193, 22580, 31612, 38386, 39515, 55321, 76772, 79030, 95965, 110642, 134351, 158060, 191930, 221284, 268702, 276605, 383860, 537404, 553210, 671755, 940457, 1106420, 1343510, 1880914, 2687020, 3761828, 4702285, 9404570, 18809140]

約数ペア:

[(1, 18809140), (2, 9404570), (4, 4702285), (5, 3761828), (7, 2687020), (10, 1880914), (14, 1343510), (17, 1106420), (20, 940457), (28, 671755), (34, 553210), (35, 537404), (49, 383860), (68, 276605), (70, 268702), (85, 221284), (98, 191930), (119, 158060), (140, 134351), (170, 110642), (196, 95965), (238, 79030), (245, 76772), (340, 55321), (476, 39515), (490, 38386), (595, 31612), (833, 22580), (980, 19193), (1129, 16660), (1190, 15806), (1666, 11290), (2258, 8330), (2380, 7903), (3332, 5645), (4165, 4516)]