251059840

素因数分解:

$2^7\times 5^1\times {\mathrm{392281}}^1$

素因数の和:392300

約数の個数: 32

約数和(自身を含む): 600191460

約数和(自身を除く): 349131620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 392281, 784562, 1569124, 1961405, 3138248, 3922810, 6276496, 7845620, 12552992, 15691240, 25105984, 31382480, 50211968, 62764960, 125529920, 251059840]

約数ペア:

[(1, 251059840), (2, 125529920), (4, 62764960), (5, 50211968), (8, 31382480), (10, 25105984), (16, 15691240), (20, 12552992), (32, 7845620), (40, 6276496), (64, 3922810), (80, 3138248), (128, 1961405), (160, 1569124), (320, 784562), (640, 392281)]