1904420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 4666368

約数和(自身を除く): 2761948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 223, 244, 305, 427, 446, 610, 854, 892, 1115, 1220, 1561, 1708, 2135, 2230, 3122, 4270, 4460, 6244, 7805, 8540, 13603, 15610, 27206, 31220, 54412, 68015, 95221, 136030, 190442, 272060, 380884, 476105, 952210, 1904420]

約数ペア:

[(1, 1904420), (2, 952210), (4, 476105), (5, 380884), (7, 272060), (10, 190442), (14, 136030), (20, 95221), (28, 68015), (35, 54412), (61, 31220), (70, 27206), (122, 15610), (140, 13603), (223, 8540), (244, 7805), (305, 6244), (427, 4460), (446, 4270), (610, 3122), (854, 2230), (892, 2135), (1115, 1708), (1220, 1561)]