389610050

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{919}}^1$

素因数の和:1131

約数の個数: 48

約数和(自身を含む): 742660800

約数和(自身を除く): 353050750

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 139, 278, 305, 610, 695, 919, 1390, 1525, 1838, 3050, 3475, 4595, 6950, 8479, 9190, 16958, 22975, 42395, 45950, 56059, 84790, 112118, 127741, 211975, 255482, 280295, 423950, 560590, 638705, 1277410, 1401475, 2802950, 3193525, 6387050, 7792201, 15584402, 38961005, 77922010, 194805025, 389610050]

約数ペア:

[(1, 389610050), (2, 194805025), (5, 77922010), (10, 38961005), (25, 15584402), (50, 7792201), (61, 6387050), (122, 3193525), (139, 2802950), (278, 1401475), (305, 1277410), (610, 638705), (695, 560590), (919, 423950), (1390, 280295), (1525, 255482), (1838, 211975), (3050, 127741), (3475, 112118), (4595, 84790), (6950, 56059), (8479, 45950), (9190, 42395), (16958, 22975)]