20510039320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{250489}}^1$

素因数の和:250612

約数の個数: 64

約数和(自身を含む): 48695256000

約数和(自身を除く): 28185216680

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 89, 92, 115, 178, 184, 230, 356, 445, 460, 712, 890, 920, 1780, 2047, 3560, 4094, 8188, 10235, 16376, 20470, 40940, 81880, 250489, 500978, 1001956, 1252445, 2003912, 2504890, 5009780, 5761247, 10019560, 11522494, 22293521, 23044988, 28806235, 44587042, 46089976, 57612470, 89174084, 111467605, 115224940, 178348168, 222935210, 230449880, 445870420, 512750983, 891740840, 1025501966, 2051003932, 2563754915, 4102007864, 5127509830, 10255019660, 20510039320]

約数ペア:

[(1, 20510039320), (2, 10255019660), (4, 5127509830), (5, 4102007864), (8, 2563754915), (10, 2051003932), (20, 1025501966), (23, 891740840), (40, 512750983), (46, 445870420), (89, 230449880), (92, 222935210), (115, 178348168), (178, 115224940), (184, 111467605), (230, 89174084), (356, 57612470), (445, 46089976), (460, 44587042), (712, 28806235), (890, 23044988), (920, 22293521), (1780, 11522494), (2047, 10019560), (3560, 5761247), (4094, 5009780), (8188, 2504890), (10235, 2003912), (16376, 1252445), (20470, 1001956), (40940, 500978), (81880, 250489)]