2912609720

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{720943}}^1$

素因数の和:721055

約数の個数: 32

約数和(自身を含む): 6618265920

約数和(自身を除く): 3705656200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 720943, 1441886, 2883772, 3604715, 5767544, 7209430, 14418860, 28837720, 72815243, 145630486, 291260972, 364076215, 582521944, 728152430, 1456304860, 2912609720]

約数ペア:

[(1, 2912609720), (2, 1456304860), (4, 728152430), (5, 582521944), (8, 364076215), (10, 291260972), (20, 145630486), (40, 72815243), (101, 28837720), (202, 14418860), (404, 7209430), (505, 5767544), (808, 3604715), (1010, 2883772), (2020, 1441886), (4040, 720943)]