521980020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{70729}}^1$

素因数の和:70785

約数の個数: 72

約数和(自身を含む): 1621980360

約数和(自身を除く): 1100000340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 3690, 7380, 70729, 141458, 212187, 282916, 353645, 424374, 636561, 707290, 848748, 1060935, 1273122, 1414580, 2121870, 2546244, 2899889, 3182805, 4243740, 5799778, 6365610, 8699667, 11599556, 12731220, 14499445, 17399334, 26099001, 28998890, 34798668, 43498335, 52198002, 57997780, 86996670, 104396004, 130495005, 173993340, 260990010, 521980020]

約数ペア:

[(1, 521980020), (2, 260990010), (3, 173993340), (4, 130495005), (5, 104396004), (6, 86996670), (9, 57997780), (10, 52198002), (12, 43498335), (15, 34798668), (18, 28998890), (20, 26099001), (30, 17399334), (36, 14499445), (41, 12731220), (45, 11599556), (60, 8699667), (82, 6365610), (90, 5799778), (123, 4243740), (164, 3182805), (180, 2899889), (205, 2546244), (246, 2121870), (369, 1414580), (410, 1273122), (492, 1060935), (615, 848748), (738, 707290), (820, 636561), (1230, 424374), (1476, 353645), (1845, 282916), (2460, 212187), (3690, 141458), (7380, 70729)]