290697875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{619}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 415702560

約数和(自身を除く): 125004685

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 221, 289, 325, 425, 619, 1105, 1445, 1625, 2125, 3095, 3757, 5525, 7225, 8047, 10523, 15475, 18785, 27625, 36125, 40235, 52615, 77375, 93925, 136799, 178891, 201175, 263075, 469625, 683995, 894455, 1005875, 1315375, 2325583, 3419975, 4472275, 11627915, 17099875, 22361375, 58139575, 290697875]

約数ペア:

[(1, 290697875), (5, 58139575), (13, 22361375), (17, 17099875), (25, 11627915), (65, 4472275), (85, 3419975), (125, 2325583), (221, 1315375), (289, 1005875), (325, 894455), (425, 683995), (619, 469625), (1105, 263075), (1445, 201175), (1625, 178891), (2125, 136799), (3095, 93925), (3757, 77375), (5525, 52615), (7225, 40235), (8047, 36125), (10523, 27625), (15475, 18785)]