328138520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{743}}^1$

素因数の和:996

約数の個数: 64

約数和(自身を含む): 755576640

約数和(自身を除く): 427438120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 181, 244, 305, 362, 488, 610, 724, 743, 905, 1220, 1448, 1486, 1810, 2440, 2972, 3620, 3715, 5944, 7240, 7430, 11041, 14860, 22082, 29720, 44164, 45323, 55205, 88328, 90646, 110410, 134483, 181292, 220820, 226615, 268966, 362584, 441640, 453230, 537932, 672415, 906460, 1075864, 1344830, 1812920, 2689660, 5379320, 8203463, 16406926, 32813852, 41017315, 65627704, 82034630, 164069260, 328138520]

約数ペア:

[(1, 328138520), (2, 164069260), (4, 82034630), (5, 65627704), (8, 41017315), (10, 32813852), (20, 16406926), (40, 8203463), (61, 5379320), (122, 2689660), (181, 1812920), (244, 1344830), (305, 1075864), (362, 906460), (488, 672415), (610, 537932), (724, 453230), (743, 441640), (905, 362584), (1220, 268966), (1448, 226615), (1486, 220820), (1810, 181292), (2440, 134483), (2972, 110410), (3620, 90646), (3715, 88328), (5944, 55205), (7240, 45323), (7430, 44164), (11041, 29720), (14860, 22082)]