21283281640

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1\times {\mathrm{587}}^1$

素因数の和:911

約数の個数: 128

約数和(自身を含む): 49573762560

約数和(自身を除く): 28290480920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 83, 134, 163, 166, 268, 326, 332, 335, 415, 536, 587, 652, 664, 670, 815, 830, 1174, 1304, 1340, 1630, 1660, 2348, 2680, 2935, 3260, 3320, 4696, 5561, 5870, 6520, 10921, 11122, 11740, 13529, 21842, 22244, 23480, 27058, 27805, 39329, 43684, 44488, 48721, 54116, 54605, 55610, 67645, 78658, 87368, 95681, 97442, 108232, 109210, 111220, 135290, 157316, 191362, 194884, 196645, 218420, 222440, 243605, 270580, 314632, 382724, 389768, 393290, 436840, 478405, 487210, 541160, 765448, 786580, 906443, 956810, 974420, 1573160, 1812886, 1913620, 1948840, 3264307, 3625772, 3827240, 4532215, 6410627, 6528614, 7251544, 7941523, 9064430, 12821254, 13057228, 15883046, 16321535, 18128860, 25642508, 26114456, 31766092, 32053135, 32643070, 36257720, 39707615, 51285016, 63532184, 64106270, 65286140, 79415230, 128212540, 130572280, 158830460, 256425080, 317660920, 532082041, 1064164082, 2128328164, 2660410205, 4256656328, 5320820410, 10641640820, 21283281640]

約数ペア:

[(1, 21283281640), (2, 10641640820), (4, 5320820410), (5, 4256656328), (8, 2660410205), (10, 2128328164), (20, 1064164082), (40, 532082041), (67, 317660920), (83, 256425080), (134, 158830460), (163, 130572280), (166, 128212540), (268, 79415230), (326, 65286140), (332, 64106270), (335, 63532184), (415, 51285016), (536, 39707615), (587, 36257720), (652, 32643070), (664, 32053135), (670, 31766092), (815, 26114456), (830, 25642508), (1174, 18128860), (1304, 16321535), (1340, 15883046), (1630, 13057228), (1660, 12821254), (2348, 9064430), (2680, 7941523), (2935, 7251544), (3260, 6528614), (3320, 6410627), (4696, 4532215), (5561, 3827240), (5870, 3625772), (6520, 3264307), (10921, 1948840), (11122, 1913620), (11740, 1812886), (13529, 1573160), (21842, 974420), (22244, 956810), (23480, 906443), (27058, 786580), (27805, 765448), (39329, 541160), (43684, 487210), (44488, 478405), (48721, 436840), (54116, 393290), (54605, 389768), (55610, 382724), (67645, 314632), (78658, 270580), (87368, 243605), (95681, 222440), (97442, 218420), (108232, 196645), (109210, 194884), (111220, 191362), (135290, 157316)]