12793460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 28607040

約数和(自身を除く): 15813580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 257, 262, 380, 514, 524, 655, 1028, 1285, 1310, 2489, 2570, 2620, 4883, 4978, 5140, 9766, 9956, 12445, 19532, 24415, 24890, 33667, 48830, 49780, 67334, 97660, 134668, 168335, 336670, 639673, 673340, 1279346, 2558692, 3198365, 6396730, 12793460]

約数ペア:

[(1, 12793460), (2, 6396730), (4, 3198365), (5, 2558692), (10, 1279346), (19, 673340), (20, 639673), (38, 336670), (76, 168335), (95, 134668), (131, 97660), (190, 67334), (257, 49780), (262, 48830), (380, 33667), (514, 24890), (524, 24415), (655, 19532), (1028, 12445), (1285, 9956), (1310, 9766), (2489, 5140), (2570, 4978), (2620, 4883)]