131421720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7879}}^1$

素因数の和:8032

約数の個数: 64

約数和(自身を含む): 397152000

約数和(自身を除く): 265730280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 695, 834, 1112, 1390, 1668, 2085, 2780, 3336, 4170, 5560, 7879, 8340, 15758, 16680, 23637, 31516, 39395, 47274, 63032, 78790, 94548, 118185, 157580, 189096, 236370, 315160, 472740, 945480, 1095181, 2190362, 3285543, 4380724, 5475905, 6571086, 8761448, 10951810, 13142172, 16427715, 21903620, 26284344, 32855430, 43807240, 65710860, 131421720]

約数ペア:

[(1, 131421720), (2, 65710860), (3, 43807240), (4, 32855430), (5, 26284344), (6, 21903620), (8, 16427715), (10, 13142172), (12, 10951810), (15, 8761448), (20, 6571086), (24, 5475905), (30, 4380724), (40, 3285543), (60, 2190362), (120, 1095181), (139, 945480), (278, 472740), (417, 315160), (556, 236370), (695, 189096), (834, 157580), (1112, 118185), (1390, 94548), (1668, 78790), (2085, 63032), (2780, 47274), (3336, 39395), (4170, 31516), (5560, 23637), (7879, 16680), (8340, 15758)]