81440880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19961}}^1$

素因数の和:19994

約数の個数: 80

約数和(自身を含む): 267331104

約数和(自身を除く): 185890224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 19961, 39922, 59883, 79844, 99805, 119766, 159688, 199610, 239532, 299415, 319376, 339337, 399220, 479064, 598830, 678674, 798440, 958128, 1018011, 1197660, 1357348, 1596880, 1696685, 2036022, 2395320, 2714696, 3393370, 4072044, 4790640, 5090055, 5429392, 6786740, 8144088, 10180110, 13573480, 16288176, 20360220, 27146960, 40720440, 81440880]

約数ペア:

[(1, 81440880), (2, 40720440), (3, 27146960), (4, 20360220), (5, 16288176), (6, 13573480), (8, 10180110), (10, 8144088), (12, 6786740), (15, 5429392), (16, 5090055), (17, 4790640), (20, 4072044), (24, 3393370), (30, 2714696), (34, 2395320), (40, 2036022), (48, 1696685), (51, 1596880), (60, 1357348), (68, 1197660), (80, 1018011), (85, 958128), (102, 798440), (120, 678674), (136, 598830), (170, 479064), (204, 399220), (240, 339337), (255, 319376), (272, 299415), (340, 239532), (408, 199610), (510, 159688), (680, 119766), (816, 99805), (1020, 79844), (1360, 59883), (2040, 39922), (4080, 19961)]