505137780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{400903}}^1$

素因数の和:400925

約数の個数: 72

約数和(自身を含む): 1751148672

約数和(自身を除く): 1246010892

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, 400903, 801806, 1202709, 1603612, 2004515, 2405418, 2806321, 3608127, 4009030, 4810836, 5612642, 6013545, 7216254, 8018060, 8418963, 11225284, 12027090, 14031605, 14432508, 16837926, 18040635, 24054180, 25256889, 28063210, 33675852, 36081270, 42094815, 50513778, 56126420, 72162540, 84189630, 101027556, 126284445, 168379260, 252568890, 505137780]

約数ペア:

[(1, 505137780), (2, 252568890), (3, 168379260), (4, 126284445), (5, 101027556), (6, 84189630), (7, 72162540), (9, 56126420), (10, 50513778), (12, 42094815), (14, 36081270), (15, 33675852), (18, 28063210), (20, 25256889), (21, 24054180), (28, 18040635), (30, 16837926), (35, 14432508), (36, 14031605), (42, 12027090), (45, 11225284), (60, 8418963), (63, 8018060), (70, 7216254), (84, 6013545), (90, 5612642), (105, 4810836), (126, 4009030), (140, 3608127), (180, 2806321), (210, 2405418), (252, 2004515), (315, 1603612), (420, 1202709), (630, 801806), (1260, 400903)]