20070440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2969}}^1$

素因数の和:3006

約数の個数: 48

約数和(自身を含む): 48915900

約数和(自身を除く): 28845460

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2969, 3380, 5938, 6760, 11876, 14845, 23752, 29690, 38597, 59380, 77194, 118760, 154388, 192985, 308776, 385970, 501761, 771940, 1003522, 1543880, 2007044, 2508805, 4014088, 5017610, 10035220, 20070440]

約数ペア:

[(1, 20070440), (2, 10035220), (4, 5017610), (5, 4014088), (8, 2508805), (10, 2007044), (13, 1543880), (20, 1003522), (26, 771940), (40, 501761), (52, 385970), (65, 308776), (104, 192985), (130, 154388), (169, 118760), (260, 77194), (338, 59380), (520, 38597), (676, 29690), (845, 23752), (1352, 14845), (1690, 11876), (2969, 6760), (3380, 5938)]