64208980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{15361}}^1$

素因数の和:15400

約数の個数: 48

約数和(自身を含む): 154848960

約数和(自身を除く): 90639980

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, 15361, 30722, 61444, 76805, 153610, 168971, 291859, 307220, 337942, 583718, 675884, 844855, 1167436, 1459295, 1689710, 2918590, 3210449, 3379420, 5837180, 6420898, 12841796, 16052245, 32104490, 64208980]

約数ペア:

[(1, 64208980), (2, 32104490), (4, 16052245), (5, 12841796), (10, 6420898), (11, 5837180), (19, 3379420), (20, 3210449), (22, 2918590), (38, 1689710), (44, 1459295), (55, 1167436), (76, 844855), (95, 675884), (110, 583718), (190, 337942), (209, 307220), (220, 291859), (380, 168971), (418, 153610), (836, 76805), (1045, 61444), (2090, 30722), (4180, 15361)]