31980520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5591}}^1$

素因数の和:5626

約数の個数: 64

約数和(自身を含む): 84551040

約数和(自身を除く): 52570520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 5591, 5720, 11182, 22364, 27955, 44728, 55910, 61501, 72683, 111820, 123002, 145366, 223640, 246004, 290732, 307505, 363415, 492008, 581464, 615010, 726830, 799513, 1230020, 1453660, 1599026, 2460040, 2907320, 3198052, 3997565, 6396104, 7995130, 15990260, 31980520]

約数ペア:

[(1, 31980520), (2, 15990260), (4, 7995130), (5, 6396104), (8, 3997565), (10, 3198052), (11, 2907320), (13, 2460040), (20, 1599026), (22, 1453660), (26, 1230020), (40, 799513), (44, 726830), (52, 615010), (55, 581464), (65, 492008), (88, 363415), (104, 307505), (110, 290732), (130, 246004), (143, 223640), (220, 145366), (260, 123002), (286, 111820), (440, 72683), (520, 61501), (572, 55910), (715, 44728), (1144, 27955), (1430, 22364), (2860, 11182), (5591, 5720)]