51412880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20731}}^1$

素因数の和:20775

約数の個数: 40

約数和(自身を含む): 123396864

約数和(自身を除く): 71983984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 20731, 41462, 82924, 103655, 165848, 207310, 331696, 414620, 642661, 829240, 1285322, 1658480, 2570644, 3213305, 5141288, 6426610, 10282576, 12853220, 25706440, 51412880]

約数ペア:

[(1, 51412880), (2, 25706440), (4, 12853220), (5, 10282576), (8, 6426610), (10, 5141288), (16, 3213305), (20, 2570644), (31, 1658480), (40, 1285322), (62, 829240), (80, 642661), (124, 414620), (155, 331696), (248, 207310), (310, 165848), (496, 103655), (620, 82924), (1240, 41462), (2480, 20731)]