201644920

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{18199}}^1$

素因数の和:18487

約数の個数: 32

約数和(自身を含む): 455364000

約数和(自身を除く): 253719080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2770, 5540, 11080, 18199, 36398, 72796, 90995, 145592, 181990, 363980, 727960, 5041123, 10082246, 20164492, 25205615, 40328984, 50411230, 100822460, 201644920]

約数ペア:

[(1, 201644920), (2, 100822460), (4, 50411230), (5, 40328984), (8, 25205615), (10, 20164492), (20, 10082246), (40, 5041123), (277, 727960), (554, 363980), (1108, 181990), (1385, 145592), (2216, 90995), (2770, 72796), (5540, 36398), (11080, 18199)]