1878449860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{219959}}^1$

素因数の和:220036

約数の個数: 48

約数和(自身を含む): 4582206720

約数和(自身を除く): 2703756860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 4270, 8540, 219959, 439918, 879836, 1099795, 1539713, 2199590, 3079426, 4399180, 6158852, 7698565, 13417499, 15397130, 26834998, 30794260, 53669996, 67087495, 93922493, 134174990, 187844986, 268349980, 375689972, 469612465, 939224930, 1878449860]

約数ペア:

[(1, 1878449860), (2, 939224930), (4, 469612465), (5, 375689972), (7, 268349980), (10, 187844986), (14, 134174990), (20, 93922493), (28, 67087495), (35, 53669996), (61, 30794260), (70, 26834998), (122, 15397130), (140, 13417499), (244, 7698565), (305, 6158852), (427, 4399180), (610, 3079426), (854, 2199590), (1220, 1539713), (1708, 1099795), (2135, 879836), (4270, 439918), (8540, 219959)]