40439984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{977}}^1$

素因数の和:1197

約数の個数: 40

約数和(自身を含む): 84890400

約数和(自身を除く): 44450416

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 199, 208, 398, 796, 977, 1592, 1954, 2587, 3184, 3908, 5174, 7816, 10348, 12701, 15632, 20696, 25402, 41392, 50804, 101608, 194423, 203216, 388846, 777692, 1555384, 2527499, 3110768, 5054998, 10109996, 20219992, 40439984]

約数ペア:

[(1, 40439984), (2, 20219992), (4, 10109996), (8, 5054998), (13, 3110768), (16, 2527499), (26, 1555384), (52, 777692), (104, 388846), (199, 203216), (208, 194423), (398, 101608), (796, 50804), (977, 41392), (1592, 25402), (1954, 20696), (2587, 15632), (3184, 12701), (3908, 10348), (5174, 7816)]