80487680

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:732

約数の個数: 144

約数和(自身を含む): 237627264

約数和(自身を除く): 157139584

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 256, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 691, 728, 832, 896, 910, 1040, 1120, 1280, 1382, 1456, 1664, 1792, 1820, 2080, 2240, 2764, 2912, 3328, 3455, 3640, 4160, 4480, 4837, 5528, 5824, 6910, 7280, 8320, 8960, 8983, 9674, 11056, 11648, 13820, 14560, 16640, 17966, 19348, 22112, 23296, 24185, 27640, 29120, 35932, 38696, 44224, 44915, 48370, 55280, 58240, 62881, 71864, 77392, 88448, 89830, 96740, 110560, 116480, 125762, 143728, 154784, 176896, 179660, 193480, 221120, 251524, 287456, 309568, 314405, 359320, 386960, 442240, 503048, 574912, 619136, 628810, 718640, 773920, 884480, 1006096, 1149824, 1238272, 1257620, 1437280, 1547840, 2012192, 2299648, 2515240, 2874560, 3095680, 4024384, 5030480, 5749120, 6191360, 8048768, 10060960, 11498240, 16097536, 20121920, 40243840, 80487680]

約数ペア:

[(1, 80487680), (2, 40243840), (4, 20121920), (5, 16097536), (7, 11498240), (8, 10060960), (10, 8048768), (13, 6191360), (14, 5749120), (16, 5030480), (20, 4024384), (26, 3095680), (28, 2874560), (32, 2515240), (35, 2299648), (40, 2012192), (52, 1547840), (56, 1437280), (64, 1257620), (65, 1238272), (70, 1149824), (80, 1006096), (91, 884480), (104, 773920), (112, 718640), (128, 628810), (130, 619136), (140, 574912), (160, 503048), (182, 442240), (208, 386960), (224, 359320), (256, 314405), (260, 309568), (280, 287456), (320, 251524), (364, 221120), (416, 193480), (448, 179660), (455, 176896), (520, 154784), (560, 143728), (640, 125762), (691, 116480), (728, 110560), (832, 96740), (896, 89830), (910, 88448), (1040, 77392), (1120, 71864), (1280, 62881), (1382, 58240), (1456, 55280), (1664, 48370), (1792, 44915), (1820, 44224), (2080, 38696), (2240, 35932), (2764, 29120), (2912, 27640), (3328, 24185), (3455, 23296), (3640, 22112), (4160, 19348), (4480, 17966), (4837, 16640), (5528, 14560), (5824, 13820), (6910, 11648), (7280, 11056), (8320, 9674), (8960, 8983)]