199679680

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20129}}^1$

素因数の和:20177

約数の個数: 56

約数和(自身を含む): 490849920

約数和(自身を除く): 291170240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 20129, 40258, 80516, 100645, 161032, 201290, 322064, 402580, 623999, 644128, 805160, 1247998, 1288256, 1610320, 2495996, 3119995, 3220640, 4991992, 6239990, 6441280, 9983984, 12479980, 19967968, 24959960, 39935936, 49919920, 99839840, 199679680]

約数ペア:

[(1, 199679680), (2, 99839840), (4, 49919920), (5, 39935936), (8, 24959960), (10, 19967968), (16, 12479980), (20, 9983984), (31, 6441280), (32, 6239990), (40, 4991992), (62, 3220640), (64, 3119995), (80, 2495996), (124, 1610320), (155, 1288256), (160, 1247998), (248, 805160), (310, 644128), (320, 623999), (496, 402580), (620, 322064), (992, 201290), (1240, 161032), (1984, 100645), (2480, 80516), (4960, 40258), (9920, 20129)]