20281569345

素因数分解:

$3^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{218681}}^1$

素因数の和:218927

約数の個数: 40

約数和(自身を含む): 36515520360

約数和(自身を除く): 16233951015

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 229, 405, 687, 1145, 2061, 3435, 6183, 10305, 18549, 30915, 92745, 218681, 656043, 1093405, 1968129, 3280215, 5904387, 9840645, 17713161, 29521935, 50077949, 88565805, 150233847, 250389745, 450701541, 751169235, 1352104623, 2253507705, 4056313869, 6760523115, 20281569345]

約数ペア:

[(1, 20281569345), (3, 6760523115), (5, 4056313869), (9, 2253507705), (15, 1352104623), (27, 751169235), (45, 450701541), (81, 250389745), (135, 150233847), (229, 88565805), (405, 50077949), (687, 29521935), (1145, 17713161), (2061, 9840645), (3435, 5904387), (6183, 3280215), (10305, 1968129), (18549, 1093405), (30915, 656043), (92745, 218681)]