66810640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{283}}^1$

素因数の和:536

約数の個数: 80

約数和(自身を含む): 168614208

約数和(自身を除く): 101803568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 227, 260, 283, 454, 520, 566, 908, 1040, 1132, 1135, 1415, 1816, 2264, 2270, 2830, 2951, 3632, 3679, 4528, 4540, 5660, 5902, 7358, 9080, 11320, 11804, 14716, 14755, 18160, 18395, 22640, 23608, 29432, 29510, 36790, 47216, 58864, 59020, 64241, 73580, 118040, 128482, 147160, 236080, 256964, 294320, 321205, 513928, 642410, 835133, 1027856, 1284820, 1670266, 2569640, 3340532, 4175665, 5139280, 6681064, 8351330, 13362128, 16702660, 33405320, 66810640]

約数ペア:

[(1, 66810640), (2, 33405320), (4, 16702660), (5, 13362128), (8, 8351330), (10, 6681064), (13, 5139280), (16, 4175665), (20, 3340532), (26, 2569640), (40, 1670266), (52, 1284820), (65, 1027856), (80, 835133), (104, 642410), (130, 513928), (208, 321205), (227, 294320), (260, 256964), (283, 236080), (454, 147160), (520, 128482), (566, 118040), (908, 73580), (1040, 64241), (1132, 59020), (1135, 58864), (1415, 47216), (1816, 36790), (2264, 29510), (2270, 29432), (2830, 23608), (2951, 22640), (3632, 18395), (3679, 18160), (4528, 14755), (4540, 14716), (5660, 11804), (5902, 11320), (7358, 9080)]