20129406400

素因数分解:

$2^6\times 5^2\times {\mathrm{12580879}}^1$

素因数の和:12580901

約数の個数: 42

約数和(自身を含む): 49530924560

約数和(自身を除く): 29401518160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12580879, 25161758, 50323516, 62904395, 100647032, 125808790, 201294064, 251617580, 314521975, 402588128, 503235160, 629043950, 805176256, 1006470320, 1258087900, 2012940640, 2516175800, 4025881280, 5032351600, 10064703200, 20129406400]

約数ペア:

[(1, 20129406400), (2, 10064703200), (4, 5032351600), (5, 4025881280), (8, 2516175800), (10, 2012940640), (16, 1258087900), (20, 1006470320), (25, 805176256), (32, 629043950), (40, 503235160), (50, 402588128), (64, 314521975), (80, 251617580), (100, 201294064), (160, 125808790), (200, 100647032), (320, 62904395), (400, 50323516), (800, 25161758), (1600, 12580879)]