40243840

素因数分解:

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

素因数の和:730

約数の個数: 128

約数和(自身を含む): 118581120

約数和(自身を除く): 78337280

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, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 691, 728, 832, 896, 910, 1040, 1120, 1382, 1456, 1664, 1820, 2080, 2240, 2764, 2912, 3455, 3640, 4160, 4480, 4837, 5528, 5824, 6910, 7280, 8320, 8983, 9674, 11056, 11648, 13820, 14560, 17966, 19348, 22112, 24185, 27640, 29120, 35932, 38696, 44224, 44915, 48370, 55280, 58240, 62881, 71864, 77392, 88448, 89830, 96740, 110560, 125762, 143728, 154784, 179660, 193480, 221120, 251524, 287456, 309568, 314405, 359320, 386960, 442240, 503048, 574912, 619136, 628810, 718640, 773920, 1006096, 1149824, 1257620, 1437280, 1547840, 2012192, 2515240, 2874560, 3095680, 4024384, 5030480, 5749120, 8048768, 10060960, 20121920, 40243840]

約数ペア:

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