66438580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8243}}^1$

素因数の和:8296

約数の個数: 48

約数和(自身を含む): 155119104

約数和(自身を除く): 88680524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 8243, 16486, 32972, 41215, 82430, 107159, 164860, 214318, 255533, 428636, 511066, 535795, 1022132, 1071590, 1277665, 2143180, 2555330, 3321929, 5110660, 6643858, 13287716, 16609645, 33219290, 66438580]

約数ペア:

[(1, 66438580), (2, 33219290), (4, 16609645), (5, 13287716), (10, 6643858), (13, 5110660), (20, 3321929), (26, 2555330), (31, 2143180), (52, 1277665), (62, 1071590), (65, 1022132), (124, 535795), (130, 511066), (155, 428636), (260, 255533), (310, 214318), (403, 164860), (620, 107159), (806, 82430), (1612, 41215), (2015, 32972), (4030, 16486), (8060, 8243)]