66716980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1451}}^1$

素因数の和:1501

約数の個数: 72

約数和(自身を含む): 162217440

約数和(自身を除く): 95500460

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 484, 605, 836, 1045, 1210, 1451, 2090, 2299, 2420, 2902, 4180, 4598, 5804, 7255, 9196, 11495, 14510, 15961, 22990, 27569, 29020, 31922, 45980, 55138, 63844, 79805, 110276, 137845, 159610, 175571, 275690, 303259, 319220, 351142, 551380, 606518, 702284, 877855, 1213036, 1516295, 1755710, 3032590, 3335849, 3511420, 6065180, 6671698, 13343396, 16679245, 33358490, 66716980]

約数ペア:

[(1, 66716980), (2, 33358490), (4, 16679245), (5, 13343396), (10, 6671698), (11, 6065180), (19, 3511420), (20, 3335849), (22, 3032590), (38, 1755710), (44, 1516295), (55, 1213036), (76, 877855), (95, 702284), (110, 606518), (121, 551380), (190, 351142), (209, 319220), (220, 303259), (242, 275690), (380, 175571), (418, 159610), (484, 137845), (605, 110276), (836, 79805), (1045, 63844), (1210, 55138), (1451, 45980), (2090, 31922), (2299, 29020), (2420, 27569), (2902, 22990), (4180, 15961), (4598, 14510), (5804, 11495), (7255, 9196)]