615240455

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{809}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 818812800

約数和(自身を除く): 203572345

約数列:

[1, 5, 17, 23, 85, 115, 389, 391, 809, 1945, 1955, 4045, 6613, 8947, 13753, 18607, 33065, 44735, 68765, 93035, 152099, 314701, 316319, 760495, 1573505, 1581595, 5349917, 7238123, 26749585, 36190615, 123048091, 615240455]

約数ペア:

[(1, 615240455), (5, 123048091), (17, 36190615), (23, 26749585), (85, 7238123), (115, 5349917), (389, 1581595), (391, 1573505), (809, 760495), (1945, 316319), (1955, 314701), (4045, 152099), (6613, 93035), (8947, 68765), (13753, 44735), (18607, 33065)]