81530540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44797}}^1$

素因数の和:44826

約数の個数: 48

約数和(自身を含む): 210729792

約数和(自身を除く): 129199252

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 44797, 89594, 179188, 223985, 313579, 447970, 582361, 627158, 895940, 1164722, 1254316, 1567895, 2329444, 2911805, 3135790, 4076527, 5823610, 6271580, 8153054, 11647220, 16306108, 20382635, 40765270, 81530540]

約数ペア:

[(1, 81530540), (2, 40765270), (4, 20382635), (5, 16306108), (7, 11647220), (10, 8153054), (13, 6271580), (14, 5823610), (20, 4076527), (26, 3135790), (28, 2911805), (35, 2329444), (52, 1567895), (65, 1254316), (70, 1164722), (91, 895940), (130, 627158), (140, 582361), (182, 447970), (260, 313579), (364, 223985), (455, 179188), (910, 89594), (1820, 44797)]