64812220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1951}}^1$

素因数の和:2122

約数の個数: 48

約数和(自身を含む): 149538816

約数和(自身を除く): 84726596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 151, 220, 302, 604, 755, 1510, 1661, 1951, 3020, 3322, 3902, 6644, 7804, 8305, 9755, 16610, 19510, 21461, 33220, 39020, 42922, 85844, 107305, 214610, 294601, 429220, 589202, 1178404, 1473005, 2946010, 3240611, 5892020, 6481222, 12962444, 16203055, 32406110, 64812220]

約数ペア:

[(1, 64812220), (2, 32406110), (4, 16203055), (5, 12962444), (10, 6481222), (11, 5892020), (20, 3240611), (22, 2946010), (44, 1473005), (55, 1178404), (110, 589202), (151, 429220), (220, 294601), (302, 214610), (604, 107305), (755, 85844), (1510, 42922), (1661, 39020), (1951, 33220), (3020, 21461), (3322, 19510), (3902, 16610), (6644, 9755), (7804, 8305)]