1821988070

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{491}}^1\times {\mathrm{7573}}^1$

素因数の和:8085

約数の個数: 48

約数和(自身を含む): 3823294608

約数和(自身を除く): 2001306538

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 491, 982, 2455, 3437, 4910, 6874, 7573, 15146, 17185, 24059, 34370, 37865, 48118, 53011, 75730, 106022, 120295, 240590, 265055, 371077, 530110, 742154, 1855385, 3710770, 3718343, 7436686, 18591715, 26028401, 37183430, 52056802, 130142005, 182198807, 260284010, 364397614, 910994035, 1821988070]

約数ペア:

[(1, 1821988070), (2, 910994035), (5, 364397614), (7, 260284010), (10, 182198807), (14, 130142005), (35, 52056802), (49, 37183430), (70, 26028401), (98, 18591715), (245, 7436686), (490, 3718343), (491, 3710770), (982, 1855385), (2455, 742154), (3437, 530110), (4910, 371077), (6874, 265055), (7573, 240590), (15146, 120295), (17185, 106022), (24059, 75730), (34370, 53011), (37865, 48118)]