66758780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{15971}}^1$

素因数の和:16010

約数の個数: 48

約数和(自身を含む): 160997760

約数和(自身を除く): 94238980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 15971, 31942, 63884, 79855, 159710, 175681, 303449, 319420, 351362, 606898, 702724, 878405, 1213796, 1517245, 1756810, 3034490, 3337939, 3513620, 6068980, 6675878, 13351756, 16689695, 33379390, 66758780]

約数ペア:

[(1, 66758780), (2, 33379390), (4, 16689695), (5, 13351756), (10, 6675878), (11, 6068980), (19, 3513620), (20, 3337939), (22, 3034490), (38, 1756810), (44, 1517245), (55, 1213796), (76, 878405), (95, 702724), (110, 606898), (190, 351362), (209, 319420), (220, 303449), (380, 175681), (418, 159710), (836, 79855), (1045, 63884), (2090, 31942), (4180, 15971)]