68381440

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1303}}^1$

素因数の和:1365

約数の個数: 72

約数和(自身を含む): 167918688

約数和(自身を除く): 99537248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 640, 656, 820, 1280, 1303, 1312, 1640, 2606, 2624, 3280, 5212, 5248, 6515, 6560, 10424, 10496, 13030, 13120, 20848, 26060, 26240, 41696, 52120, 52480, 53423, 83392, 104240, 106846, 166784, 208480, 213692, 267115, 333568, 416960, 427384, 534230, 833920, 854768, 1068460, 1667840, 1709536, 2136920, 3419072, 4273840, 6838144, 8547680, 13676288, 17095360, 34190720, 68381440]

約数ペア:

[(1, 68381440), (2, 34190720), (4, 17095360), (5, 13676288), (8, 8547680), (10, 6838144), (16, 4273840), (20, 3419072), (32, 2136920), (40, 1709536), (41, 1667840), (64, 1068460), (80, 854768), (82, 833920), (128, 534230), (160, 427384), (164, 416960), (205, 333568), (256, 267115), (320, 213692), (328, 208480), (410, 166784), (640, 106846), (656, 104240), (820, 83392), (1280, 53423), (1303, 52480), (1312, 52120), (1640, 41696), (2606, 26240), (2624, 26060), (3280, 20848), (5212, 13120), (5248, 13030), (6515, 10496), (6560, 10424)]