20839430

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{269}}^1$

素因数の和:464

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 17729530

約数列:

[1, 2, 5, 10, 61, 122, 127, 254, 269, 305, 538, 610, 635, 1270, 1345, 2690, 7747, 15494, 16409, 32818, 34163, 38735, 68326, 77470, 82045, 164090, 170815, 341630, 2083943, 4167886, 10419715, 20839430]

約数ペア:

[(1, 20839430), (2, 10419715), (5, 4167886), (10, 2083943), (61, 341630), (122, 170815), (127, 164090), (254, 82045), (269, 77470), (305, 68326), (538, 38735), (610, 34163), (635, 32818), (1270, 16409), (1345, 15494), (2690, 7747)]