20121974925

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{897301}}^1$

素因数の和:897350

約数の個数: 48

約数和(自身を含む): 37385190528

約数和(自身を除く): 17263215603

約数列:

[1, 3, 5, 13, 15, 23, 25, 39, 65, 69, 75, 115, 195, 299, 325, 345, 575, 897, 975, 1495, 1725, 4485, 7475, 22425, 897301, 2691903, 4486505, 11664913, 13459515, 20637923, 22432525, 34994739, 58324565, 61913769, 67297575, 103189615, 174973695, 268292999, 291622825, 309568845, 515948075, 804878997, 874868475, 1341464995, 1547844225, 4024394985, 6707324975, 20121974925]

約数ペア:

[(1, 20121974925), (3, 6707324975), (5, 4024394985), (13, 1547844225), (15, 1341464995), (23, 874868475), (25, 804878997), (39, 515948075), (65, 309568845), (69, 291622825), (75, 268292999), (115, 174973695), (195, 103189615), (299, 67297575), (325, 61913769), (345, 58324565), (575, 34994739), (897, 22432525), (975, 20637923), (1495, 13459515), (1725, 11664913), (4485, 4486505), (7475, 2691903), (22425, 897301)]