40208480

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1487}}^1$

素因数の和:1528

約数の個数: 72

約数和(自身を含む): 102930912

約数和(自身を除く): 62722432

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1487, 1690, 2080, 2704, 2974, 3380, 5408, 5948, 6760, 7435, 11896, 13520, 14870, 19331, 23792, 27040, 29740, 38662, 47584, 59480, 77324, 96655, 118960, 154648, 193310, 237920, 251303, 309296, 386620, 502606, 618592, 773240, 1005212, 1256515, 1546480, 2010424, 2513030, 3092960, 4020848, 5026060, 8041696, 10052120, 20104240, 40208480]

約数ペア:

[(1, 40208480), (2, 20104240), (4, 10052120), (5, 8041696), (8, 5026060), (10, 4020848), (13, 3092960), (16, 2513030), (20, 2010424), (26, 1546480), (32, 1256515), (40, 1005212), (52, 773240), (65, 618592), (80, 502606), (104, 386620), (130, 309296), (160, 251303), (169, 237920), (208, 193310), (260, 154648), (338, 118960), (416, 96655), (520, 77324), (676, 59480), (845, 47584), (1040, 38662), (1352, 29740), (1487, 27040), (1690, 23792), (2080, 19331), (2704, 14870), (2974, 13520), (3380, 11896), (5408, 7435), (5948, 6760)]