31941640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{439}}^1$

素因数の和:574

約数の個数: 64

約数和(自身を含む): 76982400

約数和(自身を除く): 45040760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 107, 136, 170, 214, 340, 428, 439, 535, 680, 856, 878, 1070, 1756, 1819, 2140, 2195, 3512, 3638, 4280, 4390, 7276, 7463, 8780, 9095, 14552, 14926, 17560, 18190, 29852, 36380, 37315, 46973, 59704, 72760, 74630, 93946, 149260, 187892, 234865, 298520, 375784, 469730, 798541, 939460, 1597082, 1878920, 3194164, 3992705, 6388328, 7985410, 15970820, 31941640]

約数ペア:

[(1, 31941640), (2, 15970820), (4, 7985410), (5, 6388328), (8, 3992705), (10, 3194164), (17, 1878920), (20, 1597082), (34, 939460), (40, 798541), (68, 469730), (85, 375784), (107, 298520), (136, 234865), (170, 187892), (214, 149260), (340, 93946), (428, 74630), (439, 72760), (535, 59704), (680, 46973), (856, 37315), (878, 36380), (1070, 29852), (1756, 18190), (1819, 17560), (2140, 14926), (2195, 14552), (3512, 9095), (3638, 8780), (4280, 7463), (4390, 7276)]