3240440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 8501760

約数和(自身を除く): 5261320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 163, 280, 284, 326, 355, 497, 568, 652, 710, 815, 994, 1141, 1304, 1420, 1630, 1988, 2282, 2485, 2840, 3260, 3976, 4564, 4970, 5705, 6520, 9128, 9940, 11410, 11573, 19880, 22820, 23146, 45640, 46292, 57865, 81011, 92584, 115730, 162022, 231460, 324044, 405055, 462920, 648088, 810110, 1620220, 3240440]

約数ペア:

[(1, 3240440), (2, 1620220), (4, 810110), (5, 648088), (7, 462920), (8, 405055), (10, 324044), (14, 231460), (20, 162022), (28, 115730), (35, 92584), (40, 81011), (56, 57865), (70, 46292), (71, 45640), (140, 23146), (142, 22820), (163, 19880), (280, 11573), (284, 11410), (326, 9940), (355, 9128), (497, 6520), (568, 5705), (652, 4970), (710, 4564), (815, 3976), (994, 3260), (1141, 2840), (1304, 2485), (1420, 2282), (1630, 1988)]