2809220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 6386688

約数和(自身を除く): 3577468

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 197, 230, 310, 394, 460, 620, 713, 788, 985, 1426, 1970, 2852, 3565, 3940, 4531, 6107, 7130, 9062, 12214, 14260, 18124, 22655, 24428, 30535, 45310, 61070, 90620, 122140, 140461, 280922, 561844, 702305, 1404610, 2809220]

約数ペア:

[(1, 2809220), (2, 1404610), (4, 702305), (5, 561844), (10, 280922), (20, 140461), (23, 122140), (31, 90620), (46, 61070), (62, 45310), (92, 30535), (115, 24428), (124, 22655), (155, 18124), (197, 14260), (230, 12214), (310, 9062), (394, 7130), (460, 6107), (620, 4531), (713, 3940), (788, 3565), (985, 2852), (1426, 1970)]