128522751920

素因数分解:

$2^4\times 5^1\times {\mathrm{4211}}^1\times {\mathrm{381509}}^1$

素因数の和:385733

約数の個数: 40

約数和(自身を含む): 298887142320

約数和(自身を除く): 170364390400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4211, 8422, 16844, 21055, 33688, 42110, 67376, 84220, 168440, 336880, 381509, 763018, 1526036, 1907545, 3052072, 3815090, 6104144, 7630180, 15260360, 30520720, 1606534399, 3213068798, 6426137596, 8032671995, 12852275192, 16065343990, 25704550384, 32130687980, 64261375960, 128522751920]

約数ペア:

[(1, 128522751920), (2, 64261375960), (4, 32130687980), (5, 25704550384), (8, 16065343990), (10, 12852275192), (16, 8032671995), (20, 6426137596), (40, 3213068798), (80, 1606534399), (4211, 30520720), (8422, 15260360), (16844, 7630180), (21055, 6104144), (33688, 3815090), (42110, 3052072), (67376, 1907545), (84220, 1526036), (168440, 763018), (336880, 381509)]