661475050

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{389}}^1\times {\mathrm{479}}^1$

素因数の和:951

約数の個数: 48

約数和(自身を含む): 1253491200

約数和(自身を除く): 592016150

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 389, 479, 710, 778, 958, 1775, 1945, 2395, 3550, 3890, 4790, 9725, 11975, 19450, 23950, 27619, 34009, 55238, 68018, 138095, 170045, 186331, 276190, 340090, 372662, 690475, 850225, 931655, 1380950, 1700450, 1863310, 4658275, 9316550, 13229501, 26459002, 66147505, 132295010, 330737525, 661475050]

約数ペア:

[(1, 661475050), (2, 330737525), (5, 132295010), (10, 66147505), (25, 26459002), (50, 13229501), (71, 9316550), (142, 4658275), (355, 1863310), (389, 1700450), (479, 1380950), (710, 931655), (778, 850225), (958, 690475), (1775, 372662), (1945, 340090), (2395, 276190), (3550, 186331), (3890, 170045), (4790, 138095), (9725, 68018), (11975, 55238), (19450, 34009), (23950, 27619)]