78808808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{39883}}^1$

素因数の和:39921

約数の個数: 32

約数和(自身を含む): 167512800

約数和(自身を除く): 88703992

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 39883, 79766, 159532, 319064, 518479, 757777, 1036958, 1515554, 2073916, 3031108, 4147832, 6062216, 9851101, 19702202, 39404404, 78808808]

約数ペア:

[(1, 78808808), (2, 39404404), (4, 19702202), (8, 9851101), (13, 6062216), (19, 4147832), (26, 3031108), (38, 2073916), (52, 1515554), (76, 1036958), (104, 757777), (152, 518479), (247, 319064), (494, 159532), (988, 79766), (1976, 39883)]