31609720

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{9521}}^1$

素因数の和:9615

約数の個数: 32

約数和(自身を含む): 71986320

約数和(自身を除く): 40376600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 9521, 19042, 38084, 47605, 76168, 95210, 190420, 380840, 790243, 1580486, 3160972, 3951215, 6321944, 7902430, 15804860, 31609720]

約数ペア:

[(1, 31609720), (2, 15804860), (4, 7902430), (5, 6321944), (8, 3951215), (10, 3160972), (20, 1580486), (40, 790243), (83, 380840), (166, 190420), (332, 95210), (415, 76168), (664, 47605), (830, 38084), (1660, 19042), (3320, 9521)]