20944340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{269}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 46947600

約数和(自身を除く): 26003260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 229, 269, 340, 458, 538, 916, 1076, 1145, 1345, 2290, 2690, 3893, 4573, 4580, 5380, 7786, 9146, 15572, 18292, 19465, 22865, 38930, 45730, 61601, 77860, 91460, 123202, 246404, 308005, 616010, 1047217, 1232020, 2094434, 4188868, 5236085, 10472170, 20944340]

約数ペア:

[(1, 20944340), (2, 10472170), (4, 5236085), (5, 4188868), (10, 2094434), (17, 1232020), (20, 1047217), (34, 616010), (68, 308005), (85, 246404), (170, 123202), (229, 91460), (269, 77860), (340, 61601), (458, 45730), (538, 38930), (916, 22865), (1076, 19465), (1145, 18292), (1345, 15572), (2290, 9146), (2690, 7786), (3893, 5380), (4573, 4580)]