99839840

素因数分解:

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

素因数の和:20175

約数の個数: 48

約数和(自身を含む): 243492480

約数和(自身を除く): 143652640

約数列:

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

約数ペア:

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