80741260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:311

約数の個数: 72

約数和(自身を含む): 183190896

約数和(自身を除く): 102449636

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 211, 212, 265, 361, 380, 422, 530, 722, 844, 1007, 1055, 1060, 1444, 1805, 2014, 2110, 3610, 4009, 4028, 4220, 5035, 7220, 8018, 10070, 11183, 16036, 19133, 20045, 20140, 22366, 38266, 40090, 44732, 55915, 76171, 76532, 80180, 95665, 111830, 152342, 191330, 212477, 223660, 304684, 380855, 382660, 424954, 761710, 849908, 1062385, 1523420, 2124770, 4037063, 4249540, 8074126, 16148252, 20185315, 40370630, 80741260]

約数ペア:

[(1, 80741260), (2, 40370630), (4, 20185315), (5, 16148252), (10, 8074126), (19, 4249540), (20, 4037063), (38, 2124770), (53, 1523420), (76, 1062385), (95, 849908), (106, 761710), (190, 424954), (211, 382660), (212, 380855), (265, 304684), (361, 223660), (380, 212477), (422, 191330), (530, 152342), (722, 111830), (844, 95665), (1007, 80180), (1055, 76532), (1060, 76171), (1444, 55915), (1805, 44732), (2014, 40090), (2110, 38266), (3610, 22366), (4009, 20140), (4028, 20045), (4220, 19133), (5035, 16036), (7220, 11183), (8018, 10070)]