68871320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1103}}^1$

素因数の和:1344

約数の個数: 64

約数和(自身を含む): 178053120

約数和(自身を除く): 109181800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 223, 280, 446, 892, 1103, 1115, 1561, 1784, 2206, 2230, 3122, 4412, 4460, 5515, 6244, 7721, 7805, 8824, 8920, 11030, 12488, 15442, 15610, 22060, 30884, 31220, 38605, 44120, 61768, 62440, 77210, 154420, 245969, 308840, 491938, 983876, 1229845, 1721783, 1967752, 2459690, 3443566, 4919380, 6887132, 8608915, 9838760, 13774264, 17217830, 34435660, 68871320]

約数ペア:

[(1, 68871320), (2, 34435660), (4, 17217830), (5, 13774264), (7, 9838760), (8, 8608915), (10, 6887132), (14, 4919380), (20, 3443566), (28, 2459690), (35, 1967752), (40, 1721783), (56, 1229845), (70, 983876), (140, 491938), (223, 308840), (280, 245969), (446, 154420), (892, 77210), (1103, 62440), (1115, 61768), (1561, 44120), (1784, 38605), (2206, 31220), (2230, 30884), (3122, 22060), (4412, 15610), (4460, 15442), (5515, 12488), (6244, 11030), (7721, 8920), (7805, 8824)]