640341324

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{631}}^1\times {\mathrm{4027}}^1$

素因数の和:4675

約数の個数: 72

約数和(自身を含む): 1853266688

約数和(自身を除く): 1212925364

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 631, 1262, 1893, 2524, 3786, 4027, 4417, 5679, 7572, 8054, 8834, 11358, 12081, 13251, 16108, 17668, 22716, 24162, 26502, 28189, 36243, 39753, 48324, 53004, 56378, 72486, 79506, 84567, 112756, 144972, 159012, 169134, 253701, 338268, 507402, 1014804, 2541037, 5082074, 7623111, 10164148, 15246222, 17787259, 22869333, 30492444, 35574518, 45738666, 53361777, 71149036, 91477332, 106723554, 160085331, 213447108, 320170662, 640341324]

約数ペア:

[(1, 640341324), (2, 320170662), (3, 213447108), (4, 160085331), (6, 106723554), (7, 91477332), (9, 71149036), (12, 53361777), (14, 45738666), (18, 35574518), (21, 30492444), (28, 22869333), (36, 17787259), (42, 15246222), (63, 10164148), (84, 7623111), (126, 5082074), (252, 2541037), (631, 1014804), (1262, 507402), (1893, 338268), (2524, 253701), (3786, 169134), (4027, 159012), (4417, 144972), (5679, 112756), (7572, 84567), (8054, 79506), (8834, 72486), (11358, 56378), (12081, 53004), (13251, 48324), (16108, 39753), (17668, 36243), (22716, 28189), (24162, 26502)]