140538920

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{42331}}^1$

素因数の和:42425

約数の個数: 32

約数和(自身を含む): 320029920

約数和(自身を除く): 179491000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 42331, 84662, 169324, 211655, 338648, 423310, 846620, 1693240, 3513473, 7026946, 14053892, 17567365, 28107784, 35134730, 70269460, 140538920]

約数ペア:

[(1, 140538920), (2, 70269460), (4, 35134730), (5, 28107784), (8, 17567365), (10, 14053892), (20, 7026946), (40, 3513473), (83, 1693240), (166, 846620), (332, 423310), (415, 338648), (664, 211655), (830, 169324), (1660, 84662), (3320, 42331)]