1728396400

素因数分解:

$2^4\times 5^2\times {\mathrm{1321}}^1\times {\mathrm{3271}}^1$

素因数の和:4610

約数の個数: 60

約数和(自身を含む): 4156886224

約数和(自身を除く): 2428489824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1321, 2642, 3271, 5284, 6542, 6605, 10568, 13084, 13210, 16355, 21136, 26168, 26420, 32710, 33025, 52336, 52840, 65420, 66050, 81775, 105680, 130840, 132100, 163550, 261680, 264200, 327100, 528400, 654200, 1308400, 4320991, 8641982, 17283964, 21604955, 34567928, 43209910, 69135856, 86419820, 108024775, 172839640, 216049550, 345679280, 432099100, 864198200, 1728396400]

約数ペア:

[(1, 1728396400), (2, 864198200), (4, 432099100), (5, 345679280), (8, 216049550), (10, 172839640), (16, 108024775), (20, 86419820), (25, 69135856), (40, 43209910), (50, 34567928), (80, 21604955), (100, 17283964), (200, 8641982), (400, 4320991), (1321, 1308400), (2642, 654200), (3271, 528400), (5284, 327100), (6542, 264200), (6605, 261680), (10568, 163550), (13084, 132100), (13210, 130840), (16355, 105680), (21136, 81775), (26168, 66050), (26420, 65420), (32710, 52840), (33025, 52336)]