20671000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{2953}}^1$

素因数の和:2981

約数の個数: 64

約数和(自身を含む): 55298880

約数和(自身を除く): 34627880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 700, 875, 1000, 1400, 1750, 2953, 3500, 5906, 7000, 11812, 14765, 20671, 23624, 29530, 41342, 59060, 73825, 82684, 103355, 118120, 147650, 165368, 206710, 295300, 369125, 413420, 516775, 590600, 738250, 826840, 1033550, 1476500, 2067100, 2583875, 2953000, 4134200, 5167750, 10335500, 20671000]

約数ペア:

[(1, 20671000), (2, 10335500), (4, 5167750), (5, 4134200), (7, 2953000), (8, 2583875), (10, 2067100), (14, 1476500), (20, 1033550), (25, 826840), (28, 738250), (35, 590600), (40, 516775), (50, 413420), (56, 369125), (70, 295300), (100, 206710), (125, 165368), (140, 147650), (175, 118120), (200, 103355), (250, 82684), (280, 73825), (350, 59060), (500, 41342), (700, 29530), (875, 23624), (1000, 20671), (1400, 14765), (1750, 11812), (2953, 7000), (3500, 5906)]