20151500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{983}}^1$

素因数の和:1043

約数の個数: 48

約数和(自身を含む): 45130176

約数和(自身を除く): 24978676

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 820, 983, 1025, 1966, 2050, 3932, 4100, 4915, 5125, 9830, 10250, 19660, 20500, 24575, 40303, 49150, 80606, 98300, 122875, 161212, 201515, 245750, 403030, 491500, 806060, 1007575, 2015150, 4030300, 5037875, 10075750, 20151500]

約数ペア:

[(1, 20151500), (2, 10075750), (4, 5037875), (5, 4030300), (10, 2015150), (20, 1007575), (25, 806060), (41, 491500), (50, 403030), (82, 245750), (100, 201515), (125, 161212), (164, 122875), (205, 98300), (250, 80606), (410, 49150), (500, 40303), (820, 24575), (983, 20500), (1025, 19660), (1966, 10250), (2050, 9830), (3932, 5125), (4100, 4915)]