20138020280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{11447}}^1$

素因数の和:11629

約数の個数: 128

約数和(自身を含む): 53148026880

約数和(自身を除く): 33010006600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 103, 122, 140, 206, 244, 280, 305, 412, 427, 488, 515, 610, 721, 824, 854, 1030, 1220, 1442, 1708, 2060, 2135, 2440, 2884, 3416, 3605, 4120, 4270, 5768, 6283, 7210, 8540, 11447, 12566, 14420, 17080, 22894, 25132, 28840, 31415, 43981, 45788, 50264, 57235, 62830, 80129, 87962, 91576, 114470, 125660, 160258, 175924, 219905, 228940, 251320, 320516, 351848, 400645, 439810, 457880, 641032, 698267, 801290, 879620, 1179041, 1396534, 1602580, 1759240, 2358082, 2793068, 3205160, 3491335, 4716164, 4887869, 5586136, 5895205, 6982670, 8253287, 9432328, 9775738, 11790410, 13965340, 16506574, 19551476, 23580820, 24439345, 27930680, 33013148, 39102952, 41266435, 47161640, 48878690, 66026296, 71921501, 82532870, 97757380, 143843002, 165065740, 195514760, 287686004, 330131480, 359607505, 503450507, 575372008, 719215010, 1006901014, 1438430020, 2013802028, 2517252535, 2876860040, 4027604056, 5034505070, 10069010140, 20138020280]

約数ペア:

[(1, 20138020280), (2, 10069010140), (4, 5034505070), (5, 4027604056), (7, 2876860040), (8, 2517252535), (10, 2013802028), (14, 1438430020), (20, 1006901014), (28, 719215010), (35, 575372008), (40, 503450507), (56, 359607505), (61, 330131480), (70, 287686004), (103, 195514760), (122, 165065740), (140, 143843002), (206, 97757380), (244, 82532870), (280, 71921501), (305, 66026296), (412, 48878690), (427, 47161640), (488, 41266435), (515, 39102952), (610, 33013148), (721, 27930680), (824, 24439345), (854, 23580820), (1030, 19551476), (1220, 16506574), (1442, 13965340), (1708, 11790410), (2060, 9775738), (2135, 9432328), (2440, 8253287), (2884, 6982670), (3416, 5895205), (3605, 5586136), (4120, 4887869), (4270, 4716164), (5768, 3491335), (6283, 3205160), (7210, 2793068), (8540, 2358082), (11447, 1759240), (12566, 1602580), (14420, 1396534), (17080, 1179041), (22894, 879620), (25132, 801290), (28840, 698267), (31415, 641032), (43981, 457880), (45788, 439810), (50264, 400645), (57235, 351848), (62830, 320516), (80129, 251320), (87962, 228940), (91576, 219905), (114470, 175924), (125660, 160258)]