647951220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{514247}}^1$

素因数の和:514269

約数の個数: 72

約数和(自身を含む): 2246235264

約数和(自身を除く): 1598284044

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, 514247, 1028494, 1542741, 2056988, 2571235, 3085482, 3599729, 4628223, 5142470, 6170964, 7199458, 7713705, 9256446, 10284940, 10799187, 14398916, 15427410, 17998645, 18512892, 21598374, 23141115, 30854820, 32397561, 35997290, 43196748, 46282230, 53995935, 64795122, 71994580, 92564460, 107991870, 129590244, 161987805, 215983740, 323975610, 647951220]

約数ペア:

[(1, 647951220), (2, 323975610), (3, 215983740), (4, 161987805), (5, 129590244), (6, 107991870), (7, 92564460), (9, 71994580), (10, 64795122), (12, 53995935), (14, 46282230), (15, 43196748), (18, 35997290), (20, 32397561), (21, 30854820), (28, 23141115), (30, 21598374), (35, 18512892), (36, 17998645), (42, 15427410), (45, 14398916), (60, 10799187), (63, 10284940), (70, 9256446), (84, 7713705), (90, 7199458), (105, 6170964), (126, 5142470), (140, 4628223), (180, 3599729), (210, 3085482), (252, 2571235), (315, 2056988), (420, 1542741), (630, 1028494), (1260, 514247)]