400621630

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1\times {\mathrm{587}}^1$

素因数の和:1224

約数の個数: 32

約数和(自身を含む): 729025920

約数和(自身を除く): 328404290

約数列:

[1, 2, 5, 10, 139, 278, 491, 587, 695, 982, 1174, 1390, 2455, 2935, 4910, 5870, 68249, 81593, 136498, 163186, 288217, 341245, 407965, 576434, 682490, 815930, 1441085, 2882170, 40062163, 80124326, 200310815, 400621630]

約数ペア:

[(1, 400621630), (2, 200310815), (5, 80124326), (10, 40062163), (139, 2882170), (278, 1441085), (491, 815930), (587, 682490), (695, 576434), (982, 407965), (1174, 341245), (1390, 288217), (2455, 163186), (2935, 136498), (4910, 81593), (5870, 68249)]