278520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 915840

約数和(自身を除く): 637320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 211, 220, 264, 330, 422, 440, 633, 660, 844, 1055, 1266, 1320, 1688, 2110, 2321, 2532, 3165, 4220, 4642, 5064, 6330, 6963, 8440, 9284, 11605, 12660, 13926, 18568, 23210, 25320, 27852, 34815, 46420, 55704, 69630, 92840, 139260, 278520]

約数ペア:

[(1, 278520), (2, 139260), (3, 92840), (4, 69630), (5, 55704), (6, 46420), (8, 34815), (10, 27852), (11, 25320), (12, 23210), (15, 18568), (20, 13926), (22, 12660), (24, 11605), (30, 9284), (33, 8440), (40, 6963), (44, 6330), (55, 5064), (60, 4642), (66, 4220), (88, 3165), (110, 2532), (120, 2321), (132, 2110), (165, 1688), (211, 1320), (220, 1266), (264, 1055), (330, 844), (422, 660), (440, 633)]