20189185780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{221713}}^1$

素因数の和:221908

約数の個数: 48

約数和(自身を含む): 44138823120

約数和(自身を除く): 23949637340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 157, 290, 314, 580, 628, 785, 1570, 3140, 4553, 9106, 18212, 22765, 45530, 91060, 221713, 443426, 886852, 1108565, 2217130, 4434260, 6429677, 12859354, 25718708, 32148385, 34808941, 64296770, 69617882, 128593540, 139235764, 174044705, 348089410, 696178820, 1009459289, 2018918578, 4037837156, 5047296445, 10094592890, 20189185780]

約数ペア:

[(1, 20189185780), (2, 10094592890), (4, 5047296445), (5, 4037837156), (10, 2018918578), (20, 1009459289), (29, 696178820), (58, 348089410), (116, 174044705), (145, 139235764), (157, 128593540), (290, 69617882), (314, 64296770), (580, 34808941), (628, 32148385), (785, 25718708), (1570, 12859354), (3140, 6429677), (4553, 4434260), (9106, 2217130), (18212, 1108565), (22765, 886852), (45530, 443426), (91060, 221713)]