21375361680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{79309}}^1$

素因数の和:80448

約数の個数: 80

約数和(自身を含む): 66323463360

約数和(自身を除く): 44948101680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1123, 2246, 3369, 4492, 5615, 6738, 8984, 11230, 13476, 16845, 17968, 22460, 26952, 33690, 44920, 53904, 67380, 79309, 89840, 134760, 158618, 237927, 269520, 317236, 396545, 475854, 634472, 793090, 951708, 1189635, 1268944, 1586180, 1903416, 2379270, 3172360, 3806832, 4758540, 6344720, 9517080, 19034160, 89064007, 178128014, 267192021, 356256028, 445320035, 534384042, 712512056, 890640070, 1068768084, 1335960105, 1425024112, 1781280140, 2137536168, 2671920210, 3562560280, 4275072336, 5343840420, 7125120560, 10687680840, 21375361680]

約数ペア:

[(1, 21375361680), (2, 10687680840), (3, 7125120560), (4, 5343840420), (5, 4275072336), (6, 3562560280), (8, 2671920210), (10, 2137536168), (12, 1781280140), (15, 1425024112), (16, 1335960105), (20, 1068768084), (24, 890640070), (30, 712512056), (40, 534384042), (48, 445320035), (60, 356256028), (80, 267192021), (120, 178128014), (240, 89064007), (1123, 19034160), (2246, 9517080), (3369, 6344720), (4492, 4758540), (5615, 3806832), (6738, 3172360), (8984, 2379270), (11230, 1903416), (13476, 1586180), (16845, 1268944), (17968, 1189635), (22460, 951708), (26952, 793090), (33690, 634472), (44920, 475854), (53904, 396545), (67380, 317236), (79309, 269520), (89840, 237927), (134760, 158618)]