72156680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^3\times {\mathrm{263}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 172022400

約数和(自身を除く): 99865720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 263, 361, 380, 526, 722, 760, 1052, 1315, 1444, 1805, 2104, 2630, 2888, 3610, 4997, 5260, 6859, 7220, 9994, 10520, 13718, 14440, 19988, 24985, 27436, 34295, 39976, 49970, 54872, 68590, 94943, 99940, 137180, 189886, 199880, 274360, 379772, 474715, 759544, 949430, 1803917, 1898860, 3607834, 3797720, 7215668, 9019585, 14431336, 18039170, 36078340, 72156680]

約数ペア:

[(1, 72156680), (2, 36078340), (4, 18039170), (5, 14431336), (8, 9019585), (10, 7215668), (19, 3797720), (20, 3607834), (38, 1898860), (40, 1803917), (76, 949430), (95, 759544), (152, 474715), (190, 379772), (263, 274360), (361, 199880), (380, 189886), (526, 137180), (722, 99940), (760, 94943), (1052, 68590), (1315, 54872), (1444, 49970), (1805, 39976), (2104, 34295), (2630, 27436), (2888, 24985), (3610, 19988), (4997, 14440), (5260, 13718), (6859, 10520), (7220, 9994)]