321950720

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:736

約数の個数: 176

約数和(自身を含む): 951904128

約数和(自身を除く): 629953408

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, 512, 520, 560, 640, 691, 728, 832, 896, 910, 1024, 1040, 1120, 1280, 1382, 1456, 1664, 1792, 1820, 2080, 2240, 2560, 2764, 2912, 3328, 3455, 3584, 3640, 4160, 4480, 4837, 5120, 5528, 5824, 6656, 6910, 7168, 7280, 8320, 8960, 8983, 9674, 11056, 11648, 13312, 13820, 14560, 16640, 17920, 17966, 19348, 22112, 23296, 24185, 27640, 29120, 33280, 35840, 35932, 38696, 44224, 44915, 46592, 48370, 55280, 58240, 62881, 66560, 71864, 77392, 88448, 89830, 93184, 96740, 110560, 116480, 125762, 143728, 154784, 176896, 179660, 193480, 221120, 232960, 251524, 287456, 309568, 314405, 353792, 359320, 386960, 442240, 465920, 503048, 574912, 619136, 628810, 707584, 718640, 773920, 884480, 1006096, 1149824, 1238272, 1257620, 1437280, 1547840, 1768960, 2012192, 2299648, 2476544, 2515240, 2874560, 3095680, 3537920, 4024384, 4599296, 4953088, 5030480, 5749120, 6191360, 8048768, 9198592, 10060960, 11498240, 12382720, 16097536, 20121920, 22996480, 24765440, 32195072, 40243840, 45992960, 64390144, 80487680, 160975360, 321950720]

約数ペア:

[(1, 321950720), (2, 160975360), (4, 80487680), (5, 64390144), (7, 45992960), (8, 40243840), (10, 32195072), (13, 24765440), (14, 22996480), (16, 20121920), (20, 16097536), (26, 12382720), (28, 11498240), (32, 10060960), (35, 9198592), (40, 8048768), (52, 6191360), (56, 5749120), (64, 5030480), (65, 4953088), (70, 4599296), (80, 4024384), (91, 3537920), (104, 3095680), (112, 2874560), (128, 2515240), (130, 2476544), (140, 2299648), (160, 2012192), (182, 1768960), (208, 1547840), (224, 1437280), (256, 1257620), (260, 1238272), (280, 1149824), (320, 1006096), (364, 884480), (416, 773920), (448, 718640), (455, 707584), (512, 628810), (520, 619136), (560, 574912), (640, 503048), (691, 465920), (728, 442240), (832, 386960), (896, 359320), (910, 353792), (1024, 314405), (1040, 309568), (1120, 287456), (1280, 251524), (1382, 232960), (1456, 221120), (1664, 193480), (1792, 179660), (1820, 176896), (2080, 154784), (2240, 143728), (2560, 125762), (2764, 116480), (2912, 110560), (3328, 96740), (3455, 93184), (3584, 89830), (3640, 88448), (4160, 77392), (4480, 71864), (4837, 66560), (5120, 62881), (5528, 58240), (5824, 55280), (6656, 48370), (6910, 46592), (7168, 44915), (7280, 44224), (8320, 38696), (8960, 35932), (8983, 35840), (9674, 33280), (11056, 29120), (11648, 27640), (13312, 24185), (13820, 23296), (14560, 22112), (16640, 19348), (17920, 17966)]