2020245760

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{727}}^1$

素因数の和:928

約数の個数: 144

約数和(自身を含む): 5249776896

約数和(自身を除く): 3229531136

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 167, 208, 256, 260, 320, 334, 416, 520, 640, 668, 727, 832, 835, 1040, 1280, 1336, 1454, 1664, 1670, 2080, 2171, 2672, 2908, 3328, 3340, 3635, 4160, 4342, 5344, 5816, 6680, 7270, 8320, 8684, 9451, 10688, 10855, 11632, 13360, 14540, 16640, 17368, 18902, 21376, 21710, 23264, 26720, 29080, 34736, 37804, 42752, 43420, 46528, 47255, 53440, 58160, 69472, 75608, 86840, 93056, 94510, 106880, 116320, 121409, 138944, 151216, 173680, 186112, 189020, 213760, 232640, 242818, 277888, 302432, 347360, 378040, 465280, 485636, 555776, 604864, 607045, 694720, 756080, 930560, 971272, 1209728, 1214090, 1389440, 1512160, 1578317, 1942544, 2419456, 2428180, 2778880, 3024320, 3156634, 3885088, 4856360, 6048640, 6313268, 7770176, 7891585, 9712720, 12097280, 12626536, 15540352, 15783170, 19425440, 25253072, 31080704, 31566340, 38850880, 50506144, 63132680, 77701760, 101012288, 126265360, 155403520, 202024576, 252530720, 404049152, 505061440, 1010122880, 2020245760]

約数ペア:

[(1, 2020245760), (2, 1010122880), (4, 505061440), (5, 404049152), (8, 252530720), (10, 202024576), (13, 155403520), (16, 126265360), (20, 101012288), (26, 77701760), (32, 63132680), (40, 50506144), (52, 38850880), (64, 31566340), (65, 31080704), (80, 25253072), (104, 19425440), (128, 15783170), (130, 15540352), (160, 12626536), (167, 12097280), (208, 9712720), (256, 7891585), (260, 7770176), (320, 6313268), (334, 6048640), (416, 4856360), (520, 3885088), (640, 3156634), (668, 3024320), (727, 2778880), (832, 2428180), (835, 2419456), (1040, 1942544), (1280, 1578317), (1336, 1512160), (1454, 1389440), (1664, 1214090), (1670, 1209728), (2080, 971272), (2171, 930560), (2672, 756080), (2908, 694720), (3328, 607045), (3340, 604864), (3635, 555776), (4160, 485636), (4342, 465280), (5344, 378040), (5816, 347360), (6680, 302432), (7270, 277888), (8320, 242818), (8684, 232640), (9451, 213760), (10688, 189020), (10855, 186112), (11632, 173680), (13360, 151216), (14540, 138944), (16640, 121409), (17368, 116320), (18902, 106880), (21376, 94510), (21710, 93056), (23264, 86840), (26720, 75608), (29080, 69472), (34736, 58160), (37804, 53440), (42752, 47255), (43420, 46528)]