129120280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{397}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 299168640

約数和(自身を除く): 170048360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 173, 188, 235, 346, 376, 397, 470, 692, 794, 865, 940, 1384, 1588, 1730, 1880, 1985, 3176, 3460, 3970, 6920, 7940, 8131, 15880, 16262, 18659, 32524, 37318, 40655, 65048, 68681, 74636, 81310, 93295, 137362, 149272, 162620, 186590, 274724, 325240, 343405, 373180, 549448, 686810, 746360, 1373620, 2747240, 3228007, 6456014, 12912028, 16140035, 25824056, 32280070, 64560140, 129120280]

約数ペア:

[(1, 129120280), (2, 64560140), (4, 32280070), (5, 25824056), (8, 16140035), (10, 12912028), (20, 6456014), (40, 3228007), (47, 2747240), (94, 1373620), (173, 746360), (188, 686810), (235, 549448), (346, 373180), (376, 343405), (397, 325240), (470, 274724), (692, 186590), (794, 162620), (865, 149272), (940, 137362), (1384, 93295), (1588, 81310), (1730, 74636), (1880, 68681), (1985, 65048), (3176, 40655), (3460, 37318), (3970, 32524), (6920, 18659), (7940, 16262), (8131, 15880)]