19967030720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{2549}}^1$

素因数の和:2855

約数の個数: 224

約数和(自身を含む): 58759344000

約数和(自身を除く): 38792313280

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, 130, 140, 160, 182, 208, 224, 260, 269, 280, 320, 364, 416, 448, 455, 520, 538, 560, 728, 832, 910, 1040, 1076, 1120, 1345, 1456, 1820, 1883, 2080, 2152, 2240, 2549, 2690, 2912, 3497, 3640, 3766, 4160, 4304, 5098, 5380, 5824, 6994, 7280, 7532, 8608, 9415, 10196, 10760, 12745, 13988, 14560, 15064, 17216, 17485, 17843, 18830, 20392, 21520, 24479, 25490, 27976, 29120, 30128, 33137, 34970, 35686, 37660, 40784, 43040, 48958, 50980, 55952, 60256, 66274, 69940, 71372, 75320, 81568, 86080, 89215, 97916, 101960, 111904, 120512, 122395, 132548, 139880, 142744, 150640, 163136, 165685, 178430, 195832, 203920, 223808, 231959, 244790, 265096, 279760, 285488, 301280, 331370, 356860, 391664, 407840, 463918, 489580, 530192, 559520, 570976, 602560, 662740, 685681, 713720, 783328, 815680, 927836, 979160, 1060384, 1119040, 1141952, 1159795, 1325480, 1371362, 1427440, 1566656, 1855672, 1958320, 2120768, 2319590, 2650960, 2742724, 2854880, 3428405, 3711344, 3916640, 4639180, 4799767, 5301920, 5485448, 5709760, 6856810, 7422688, 7833280, 8913853, 9278360, 9599534, 10603840, 10970896, 13713620, 14845376, 17827706, 18556720, 19199068, 21941792, 23998835, 27427240, 35655412, 37113440, 38398136, 43883584, 44569265, 47997670, 54854480, 62396971, 71310824, 74226880, 76796272, 89138530, 95995340, 109708960, 124793942, 142621648, 153592544, 178277060, 191990680, 219417920, 249587884, 285243296, 307185088, 311984855, 356554120, 383981360, 499175768, 570486592, 623969710, 713108240, 767962720, 998351536, 1247939420, 1426216480, 1535925440, 1996703072, 2495878840, 2852432960, 3993406144, 4991757680, 9983515360, 19967030720]

約数ペア:

[(1, 19967030720), (2, 9983515360), (4, 4991757680), (5, 3993406144), (7, 2852432960), (8, 2495878840), (10, 1996703072), (13, 1535925440), (14, 1426216480), (16, 1247939420), (20, 998351536), (26, 767962720), (28, 713108240), (32, 623969710), (35, 570486592), (40, 499175768), (52, 383981360), (56, 356554120), (64, 311984855), (65, 307185088), (70, 285243296), (80, 249587884), (91, 219417920), (104, 191990680), (112, 178277060), (130, 153592544), (140, 142621648), (160, 124793942), (182, 109708960), (208, 95995340), (224, 89138530), (260, 76796272), (269, 74226880), (280, 71310824), (320, 62396971), (364, 54854480), (416, 47997670), (448, 44569265), (455, 43883584), (520, 38398136), (538, 37113440), (560, 35655412), (728, 27427240), (832, 23998835), (910, 21941792), (1040, 19199068), (1076, 18556720), (1120, 17827706), (1345, 14845376), (1456, 13713620), (1820, 10970896), (1883, 10603840), (2080, 9599534), (2152, 9278360), (2240, 8913853), (2549, 7833280), (2690, 7422688), (2912, 6856810), (3497, 5709760), (3640, 5485448), (3766, 5301920), (4160, 4799767), (4304, 4639180), (5098, 3916640), (5380, 3711344), (5824, 3428405), (6994, 2854880), (7280, 2742724), (7532, 2650960), (8608, 2319590), (9415, 2120768), (10196, 1958320), (10760, 1855672), (12745, 1566656), (13988, 1427440), (14560, 1371362), (15064, 1325480), (17216, 1159795), (17485, 1141952), (17843, 1119040), (18830, 1060384), (20392, 979160), (21520, 927836), (24479, 815680), (25490, 783328), (27976, 713720), (29120, 685681), (30128, 662740), (33137, 602560), (34970, 570976), (35686, 559520), (37660, 530192), (40784, 489580), (43040, 463918), (48958, 407840), (50980, 391664), (55952, 356860), (60256, 331370), (66274, 301280), (69940, 285488), (71372, 279760), (75320, 265096), (81568, 244790), (86080, 231959), (89215, 223808), (97916, 203920), (101960, 195832), (111904, 178430), (120512, 165685), (122395, 163136), (132548, 150640), (139880, 142744)]