25392940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 55248480

約数和(自身を除く): 29855540

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 173, 179, 205, 346, 358, 410, 692, 716, 820, 865, 895, 1730, 1790, 3460, 3580, 7093, 7339, 14186, 14678, 28372, 29356, 30967, 35465, 36695, 61934, 70930, 73390, 123868, 141860, 146780, 154835, 309670, 619340, 1269647, 2539294, 5078588, 6348235, 12696470, 25392940]

約数ペア:

[(1, 25392940), (2, 12696470), (4, 6348235), (5, 5078588), (10, 2539294), (20, 1269647), (41, 619340), (82, 309670), (164, 154835), (173, 146780), (179, 141860), (205, 123868), (346, 73390), (358, 70930), (410, 61934), (692, 36695), (716, 35465), (820, 30967), (865, 29356), (895, 28372), (1730, 14678), (1790, 14186), (3460, 7339), (3580, 7093)]