51280740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{40699}}^1$

素因数の和:40721

約数の個数: 72

約数和(自身を含む): 177777600

約数和(自身を除く): 126496860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 40699, 81398, 122097, 162796, 203495, 244194, 284893, 366291, 406990, 488388, 569786, 610485, 732582, 813980, 854679, 1139572, 1220970, 1424465, 1465164, 1709358, 1831455, 2441940, 2564037, 2848930, 3418716, 3662910, 4273395, 5128074, 5697860, 7325820, 8546790, 10256148, 12820185, 17093580, 25640370, 51280740]

約数ペア:

[(1, 51280740), (2, 25640370), (3, 17093580), (4, 12820185), (5, 10256148), (6, 8546790), (7, 7325820), (9, 5697860), (10, 5128074), (12, 4273395), (14, 3662910), (15, 3418716), (18, 2848930), (20, 2564037), (21, 2441940), (28, 1831455), (30, 1709358), (35, 1465164), (36, 1424465), (42, 1220970), (45, 1139572), (60, 854679), (63, 813980), (70, 732582), (84, 610485), (90, 569786), (105, 488388), (126, 406990), (140, 366291), (180, 284893), (210, 244194), (252, 203495), (315, 162796), (420, 122097), (630, 81398), (1260, 40699)]