20787464320

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{125407}}^1$

素因数の和:125470

約数の個数: 128

約数和(自身を含む): 58329768960

約数和(自身を除く): 37542304640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 112, 128, 140, 148, 160, 185, 224, 259, 280, 296, 320, 370, 448, 518, 560, 592, 640, 740, 896, 1036, 1120, 1184, 1295, 1480, 2072, 2240, 2368, 2590, 2960, 4144, 4480, 4736, 5180, 5920, 8288, 10360, 11840, 16576, 20720, 23680, 33152, 41440, 82880, 125407, 165760, 250814, 501628, 627035, 877849, 1003256, 1254070, 1755698, 2006512, 2508140, 3511396, 4013024, 4389245, 4640059, 5016280, 7022792, 8026048, 8778490, 9280118, 10032560, 14045584, 16052096, 17556980, 18560236, 20065120, 23200295, 28091168, 32480413, 35113960, 37120472, 40130240, 46400590, 56182336, 64960826, 70227920, 74240944, 80260480, 92801180, 112364672, 129921652, 140455840, 148481888, 162402065, 185602360, 259843304, 280911680, 296963776, 324804130, 371204720, 519686608, 561823360, 593927552, 649608260, 742409440, 1039373216, 1299216520, 1484818880, 2078746432, 2598433040, 2969637760, 4157492864, 5196866080, 10393732160, 20787464320]

約数ペア:

[(1, 20787464320), (2, 10393732160), (4, 5196866080), (5, 4157492864), (7, 2969637760), (8, 2598433040), (10, 2078746432), (14, 1484818880), (16, 1299216520), (20, 1039373216), (28, 742409440), (32, 649608260), (35, 593927552), (37, 561823360), (40, 519686608), (56, 371204720), (64, 324804130), (70, 296963776), (74, 280911680), (80, 259843304), (112, 185602360), (128, 162402065), (140, 148481888), (148, 140455840), (160, 129921652), (185, 112364672), (224, 92801180), (259, 80260480), (280, 74240944), (296, 70227920), (320, 64960826), (370, 56182336), (448, 46400590), (518, 40130240), (560, 37120472), (592, 35113960), (640, 32480413), (740, 28091168), (896, 23200295), (1036, 20065120), (1120, 18560236), (1184, 17556980), (1295, 16052096), (1480, 14045584), (2072, 10032560), (2240, 9280118), (2368, 8778490), (2590, 8026048), (2960, 7022792), (4144, 5016280), (4480, 4640059), (4736, 4389245), (5180, 4013024), (5920, 3511396), (8288, 2508140), (10360, 2006512), (11840, 1755698), (16576, 1254070), (20720, 1003256), (23680, 877849), (33152, 627035), (41440, 501628), (82880, 250814), (125407, 165760)]