81037040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144709}}^1$

素因数の和:144729

約数の個数: 40

約数和(自身を含む): 215328480

約数和(自身を除く): 134291440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144709, 289418, 578836, 723545, 1012963, 1157672, 1447090, 2025926, 2315344, 2894180, 4051852, 5064815, 5788360, 8103704, 10129630, 11576720, 16207408, 20259260, 40518520, 81037040]

約数ペア:

[(1, 81037040), (2, 40518520), (4, 20259260), (5, 16207408), (7, 11576720), (8, 10129630), (10, 8103704), (14, 5788360), (16, 5064815), (20, 4051852), (28, 2894180), (35, 2315344), (40, 2025926), (56, 1447090), (70, 1157672), (80, 1012963), (112, 723545), (140, 578836), (280, 289418), (560, 144709)]