18715691942

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{409}}^1\times {\mathrm{1039}}^1$

素因数の和:1549

約数の個数: 48

約数和(自身を含む): 30217262400

約数和(自身を除く): 11501570458

約数列:

[1, 2, 19, 38, 61, 122, 361, 409, 722, 818, 1039, 1159, 2078, 2318, 7771, 15542, 19741, 22021, 24949, 39482, 44042, 49898, 63379, 126758, 147649, 295298, 375079, 424951, 474031, 750158, 849902, 948062, 1204201, 2408402, 8074069, 9006589, 16148138, 18013178, 22879819, 25922011, 45759638, 51844022, 153407311, 306814622, 492518209, 985036418, 9357845971, 18715691942]

約数ペア:

[(1, 18715691942), (2, 9357845971), (19, 985036418), (38, 492518209), (61, 306814622), (122, 153407311), (361, 51844022), (409, 45759638), (722, 25922011), (818, 22879819), (1039, 18013178), (1159, 16148138), (2078, 9006589), (2318, 8074069), (7771, 2408402), (15542, 1204201), (19741, 948062), (22021, 849902), (24949, 750158), (39482, 474031), (44042, 424951), (49898, 375079), (63379, 295298), (126758, 147649)]