129250400

素因数分解:

$2^5\times 5^2\times {\mathrm{161563}}^1$

素因数の和:161583

約数の個数: 36

約数和(自身を含む): 315534492

約数和(自身を除く): 186284092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 161563, 323126, 646252, 807815, 1292504, 1615630, 2585008, 3231260, 4039075, 5170016, 6462520, 8078150, 12925040, 16156300, 25850080, 32312600, 64625200, 129250400]

約数ペア:

[(1, 129250400), (2, 64625200), (4, 32312600), (5, 25850080), (8, 16156300), (10, 12925040), (16, 8078150), (20, 6462520), (25, 5170016), (32, 4039075), (40, 3231260), (50, 2585008), (80, 1615630), (100, 1292504), (160, 807815), (200, 646252), (400, 323126), (800, 161563)]