321107920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:453

約数の個数: 160

約数和(自身を含む): 899942400

約数和(自身を除く): 578834480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 53, 56, 62, 70, 80, 106, 112, 124, 140, 155, 212, 217, 248, 265, 280, 310, 349, 371, 424, 434, 496, 530, 560, 620, 698, 742, 848, 868, 1060, 1085, 1240, 1396, 1484, 1643, 1736, 1745, 1855, 2120, 2170, 2443, 2480, 2792, 2968, 3286, 3472, 3490, 3710, 4240, 4340, 4886, 5584, 5936, 6572, 6980, 7420, 8215, 8680, 9772, 10819, 11501, 12215, 13144, 13960, 14840, 16430, 17360, 18497, 19544, 21638, 23002, 24430, 26288, 27920, 29680, 32860, 36994, 39088, 43276, 46004, 48860, 54095, 57505, 65720, 73988, 75733, 86552, 92008, 92485, 97720, 108190, 115010, 129479, 131440, 147976, 151466, 173104, 184016, 184970, 195440, 216380, 230020, 258958, 295952, 302932, 369940, 378665, 432760, 460040, 517916, 573407, 605864, 647395, 739880, 757330, 865520, 920080, 1035832, 1146814, 1211728, 1294790, 1479760, 1514660, 2071664, 2293628, 2589580, 2867035, 3029320, 4013849, 4587256, 5179160, 5734070, 6058640, 8027698, 9174512, 10358320, 11468140, 16055396, 20069245, 22936280, 32110792, 40138490, 45872560, 64221584, 80276980, 160553960, 321107920]

約数ペア:

[(1, 321107920), (2, 160553960), (4, 80276980), (5, 64221584), (7, 45872560), (8, 40138490), (10, 32110792), (14, 22936280), (16, 20069245), (20, 16055396), (28, 11468140), (31, 10358320), (35, 9174512), (40, 8027698), (53, 6058640), (56, 5734070), (62, 5179160), (70, 4587256), (80, 4013849), (106, 3029320), (112, 2867035), (124, 2589580), (140, 2293628), (155, 2071664), (212, 1514660), (217, 1479760), (248, 1294790), (265, 1211728), (280, 1146814), (310, 1035832), (349, 920080), (371, 865520), (424, 757330), (434, 739880), (496, 647395), (530, 605864), (560, 573407), (620, 517916), (698, 460040), (742, 432760), (848, 378665), (868, 369940), (1060, 302932), (1085, 295952), (1240, 258958), (1396, 230020), (1484, 216380), (1643, 195440), (1736, 184970), (1745, 184016), (1855, 173104), (2120, 151466), (2170, 147976), (2443, 131440), (2480, 129479), (2792, 115010), (2968, 108190), (3286, 97720), (3472, 92485), (3490, 92008), (3710, 86552), (4240, 75733), (4340, 73988), (4886, 65720), (5584, 57505), (5936, 54095), (6572, 48860), (6980, 46004), (7420, 43276), (8215, 39088), (8680, 36994), (9772, 32860), (10819, 29680), (11501, 27920), (12215, 26288), (13144, 24430), (13960, 23002), (14840, 21638), (16430, 19544), (17360, 18497)]