51172220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1427}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 118032768

約数和(自身を除く): 66860548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 163, 220, 326, 652, 815, 1427, 1630, 1793, 2854, 3260, 3586, 5708, 7135, 7172, 8965, 14270, 15697, 17930, 28540, 31394, 35860, 62788, 78485, 156970, 232601, 313940, 465202, 930404, 1163005, 2326010, 2558611, 4652020, 5117222, 10234444, 12793055, 25586110, 51172220]

約数ペア:

[(1, 51172220), (2, 25586110), (4, 12793055), (5, 10234444), (10, 5117222), (11, 4652020), (20, 2558611), (22, 2326010), (44, 1163005), (55, 930404), (110, 465202), (163, 313940), (220, 232601), (326, 156970), (652, 78485), (815, 62788), (1427, 35860), (1630, 31394), (1793, 28540), (2854, 17930), (3260, 15697), (3586, 14270), (5708, 8965), (7135, 7172)]