81679560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{40039}}^1$

素因数の和:40070

約数の個数: 64

約数和(自身を含む): 259459200

約数和(自身を除く): 177779640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 40039, 80078, 120117, 160156, 200195, 240234, 320312, 400390, 480468, 600585, 680663, 800780, 960936, 1201170, 1361326, 1601560, 2041989, 2402340, 2722652, 3403315, 4083978, 4804680, 5445304, 6806630, 8167956, 10209945, 13613260, 16335912, 20419890, 27226520, 40839780, 81679560]

約数ペア:

[(1, 81679560), (2, 40839780), (3, 27226520), (4, 20419890), (5, 16335912), (6, 13613260), (8, 10209945), (10, 8167956), (12, 6806630), (15, 5445304), (17, 4804680), (20, 4083978), (24, 3403315), (30, 2722652), (34, 2402340), (40, 2041989), (51, 1601560), (60, 1361326), (68, 1201170), (85, 960936), (102, 800780), (120, 680663), (136, 600585), (170, 480468), (204, 400390), (255, 320312), (340, 240234), (408, 200195), (510, 160156), (680, 120117), (1020, 80078), (2040, 40039)]