71219720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{12451}}^1$

素因数の和:12486

約数の個数: 64

約数和(自身を含む): 188274240

約数和(自身を除く): 117054520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 5720, 12451, 24902, 49804, 62255, 99608, 124510, 136961, 161863, 249020, 273922, 323726, 498040, 547844, 647452, 684805, 809315, 1095688, 1294904, 1369610, 1618630, 1780493, 2739220, 3237260, 3560986, 5478440, 6474520, 7121972, 8902465, 14243944, 17804930, 35609860, 71219720]

約数ペア:

[(1, 71219720), (2, 35609860), (4, 17804930), (5, 14243944), (8, 8902465), (10, 7121972), (11, 6474520), (13, 5478440), (20, 3560986), (22, 3237260), (26, 2739220), (40, 1780493), (44, 1618630), (52, 1369610), (55, 1294904), (65, 1095688), (88, 809315), (104, 684805), (110, 647452), (130, 547844), (143, 498040), (220, 323726), (260, 273922), (286, 249020), (440, 161863), (520, 136961), (572, 124510), (715, 99608), (1144, 62255), (1430, 49804), (2860, 24902), (5720, 12451)]