20180867840

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{13487}}^1$

素因数の和:13682

約数の個数: 144

約数和(自身を含む): 55580055552

約数和(自身を除く): 35399187712

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 167, 224, 256, 280, 320, 334, 448, 560, 640, 668, 835, 896, 1120, 1169, 1280, 1336, 1670, 1792, 2240, 2338, 2672, 3340, 4480, 4676, 5344, 5845, 6680, 8960, 9352, 10688, 11690, 13360, 13487, 18704, 21376, 23380, 26720, 26974, 37408, 42752, 46760, 53440, 53948, 67435, 74816, 93520, 94409, 106880, 107896, 134870, 149632, 187040, 188818, 213760, 215792, 269740, 299264, 374080, 377636, 431584, 472045, 539480, 748160, 755272, 863168, 944090, 1078960, 1496320, 1510544, 1726336, 1888180, 2157920, 2252329, 3021088, 3452672, 3776360, 4315840, 4504658, 6042176, 7552720, 8631680, 9009316, 11261645, 12084352, 15105440, 15766303, 17263360, 18018632, 22523290, 24168704, 30210880, 31532606, 36037264, 45046580, 60421760, 63065212, 72074528, 78831515, 90093160, 120843520, 126130424, 144149056, 157663030, 180186320, 252260848, 288298112, 315326060, 360372640, 504521696, 576596224, 630652120, 720745280, 1009043392, 1261304240, 1441490560, 2018086784, 2522608480, 2882981120, 4036173568, 5045216960, 10090433920, 20180867840]

約数ペア:

[(1, 20180867840), (2, 10090433920), (4, 5045216960), (5, 4036173568), (7, 2882981120), (8, 2522608480), (10, 2018086784), (14, 1441490560), (16, 1261304240), (20, 1009043392), (28, 720745280), (32, 630652120), (35, 576596224), (40, 504521696), (56, 360372640), (64, 315326060), (70, 288298112), (80, 252260848), (112, 180186320), (128, 157663030), (140, 144149056), (160, 126130424), (167, 120843520), (224, 90093160), (256, 78831515), (280, 72074528), (320, 63065212), (334, 60421760), (448, 45046580), (560, 36037264), (640, 31532606), (668, 30210880), (835, 24168704), (896, 22523290), (1120, 18018632), (1169, 17263360), (1280, 15766303), (1336, 15105440), (1670, 12084352), (1792, 11261645), (2240, 9009316), (2338, 8631680), (2672, 7552720), (3340, 6042176), (4480, 4504658), (4676, 4315840), (5344, 3776360), (5845, 3452672), (6680, 3021088), (8960, 2252329), (9352, 2157920), (10688, 1888180), (11690, 1726336), (13360, 1510544), (13487, 1496320), (18704, 1078960), (21376, 944090), (23380, 863168), (26720, 755272), (26974, 748160), (37408, 539480), (42752, 472045), (46760, 431584), (53440, 377636), (53948, 374080), (67435, 299264), (74816, 269740), (93520, 215792), (94409, 213760), (106880, 188818), (107896, 187040), (134870, 149632)]