27618521720

素因数分解:

$2^3\times 5^1\times {\mathrm{6521}}^1\times {\mathrm{105883}}^1$

素因数の和:112415

約数の個数: 32

約数和(自身を含む): 62151790320

約数和(自身を除く): 34533268600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6521, 13042, 26084, 32605, 52168, 65210, 105883, 130420, 211766, 260840, 423532, 529415, 847064, 1058830, 2117660, 4235320, 690463043, 1380926086, 2761852172, 3452315215, 5523704344, 6904630430, 13809260860, 27618521720]

約数ペア:

[(1, 27618521720), (2, 13809260860), (4, 6904630430), (5, 5523704344), (8, 3452315215), (10, 2761852172), (20, 1380926086), (40, 690463043), (6521, 4235320), (13042, 2117660), (26084, 1058830), (32605, 847064), (52168, 529415), (65210, 423532), (105883, 260840), (130420, 211766)]