20545320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{547}}^1$

素因数の和:874

約数の個数: 64

約数和(自身を含む): 61945920

約数和(自身を除く): 41400600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 313, 547, 626, 939, 1094, 1252, 1565, 1641, 1878, 2188, 2504, 2735, 3130, 3282, 3756, 4376, 4695, 5470, 6260, 6564, 7512, 8205, 9390, 10940, 12520, 13128, 16410, 18780, 21880, 32820, 37560, 65640, 171211, 342422, 513633, 684844, 856055, 1027266, 1369688, 1712110, 2054532, 2568165, 3424220, 4109064, 5136330, 6848440, 10272660, 20545320]

約数ペア:

[(1, 20545320), (2, 10272660), (3, 6848440), (4, 5136330), (5, 4109064), (6, 3424220), (8, 2568165), (10, 2054532), (12, 1712110), (15, 1369688), (20, 1027266), (24, 856055), (30, 684844), (40, 513633), (60, 342422), (120, 171211), (313, 65640), (547, 37560), (626, 32820), (939, 21880), (1094, 18780), (1252, 16410), (1565, 13128), (1641, 12520), (1878, 10940), (2188, 9390), (2504, 8205), (2735, 7512), (3130, 6564), (3282, 6260), (3756, 5470), (4376, 4695)]