12400220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3851}}^1$

素因数の和:3890

約数の個数: 48

約数和(自身を含む): 31062528

約数和(自身を除く): 18662308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 3851, 7702, 15404, 19255, 26957, 38510, 53914, 77020, 88573, 107828, 134785, 177146, 269570, 354292, 442865, 539140, 620011, 885730, 1240022, 1771460, 2480044, 3100055, 6200110, 12400220]

約数ペア:

[(1, 12400220), (2, 6200110), (4, 3100055), (5, 2480044), (7, 1771460), (10, 1240022), (14, 885730), (20, 620011), (23, 539140), (28, 442865), (35, 354292), (46, 269570), (70, 177146), (92, 134785), (115, 107828), (140, 88573), (161, 77020), (230, 53914), (322, 38510), (460, 26957), (644, 19255), (805, 15404), (1610, 7702), (3220, 3851)]