21428919180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1\times {\mathrm{8039}}^1$

素因数の和:8364

約数の個数: 144

約数和(自身を含む): 66374380800

約数和(自身を除く): 44945461620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 251, 295, 354, 502, 531, 590, 708, 753, 885, 1004, 1062, 1180, 1255, 1506, 1770, 2124, 2259, 2510, 2655, 3012, 3540, 3765, 4518, 5020, 5310, 7530, 8039, 9036, 10620, 11295, 14809, 15060, 16078, 22590, 24117, 29618, 32156, 40195, 44427, 45180, 48234, 59236, 72351, 74045, 80390, 88854, 96468, 120585, 133281, 144702, 148090, 160780, 177708, 222135, 241170, 266562, 289404, 296180, 361755, 444270, 474301, 482340, 533124, 666405, 723510, 888540, 948602, 1332810, 1422903, 1447020, 1897204, 2017789, 2371505, 2665620, 2845806, 4035578, 4268709, 4743010, 5691612, 6053367, 7114515, 8071156, 8537418, 9486020, 10088945, 12106734, 14229030, 17074836, 18160101, 20177890, 21343545, 24213468, 28458060, 30266835, 36320202, 40355780, 42687090, 60533670, 72640404, 85374180, 90800505, 119049551, 121067340, 181601010, 238099102, 357148653, 363202020, 476198204, 595247755, 714297306, 1071445959, 1190495510, 1428594612, 1785743265, 2142891918, 2380991020, 3571486530, 4285783836, 5357229795, 7142973060, 10714459590, 21428919180]

約数ペア:

[(1, 21428919180), (2, 10714459590), (3, 7142973060), (4, 5357229795), (5, 4285783836), (6, 3571486530), (9, 2380991020), (10, 2142891918), (12, 1785743265), (15, 1428594612), (18, 1190495510), (20, 1071445959), (30, 714297306), (36, 595247755), (45, 476198204), (59, 363202020), (60, 357148653), (90, 238099102), (118, 181601010), (177, 121067340), (180, 119049551), (236, 90800505), (251, 85374180), (295, 72640404), (354, 60533670), (502, 42687090), (531, 40355780), (590, 36320202), (708, 30266835), (753, 28458060), (885, 24213468), (1004, 21343545), (1062, 20177890), (1180, 18160101), (1255, 17074836), (1506, 14229030), (1770, 12106734), (2124, 10088945), (2259, 9486020), (2510, 8537418), (2655, 8071156), (3012, 7114515), (3540, 6053367), (3765, 5691612), (4518, 4743010), (5020, 4268709), (5310, 4035578), (7530, 2845806), (8039, 2665620), (9036, 2371505), (10620, 2017789), (11295, 1897204), (14809, 1447020), (15060, 1422903), (16078, 1332810), (22590, 948602), (24117, 888540), (29618, 723510), (32156, 666405), (40195, 533124), (44427, 482340), (45180, 474301), (48234, 444270), (59236, 361755), (72351, 296180), (74045, 289404), (80390, 266562), (88854, 241170), (96468, 222135), (120585, 177708), (133281, 160780), (144702, 148090)]