646908090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{2551}}^1$

素因数の和:2747

約数の個数: 64

約数和(自身を含む): 1587548160

約数和(自身を除く): 940640070

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 79, 107, 158, 214, 237, 321, 395, 474, 535, 642, 790, 1070, 1185, 1605, 2370, 2551, 3210, 5102, 7653, 8453, 12755, 15306, 16906, 25359, 25510, 38265, 42265, 50718, 76530, 84530, 126795, 201529, 253590, 272957, 403058, 545914, 604587, 818871, 1007645, 1209174, 1364785, 1637742, 2015290, 2729570, 3022935, 4094355, 6045870, 8188710, 21563603, 43127206, 64690809, 107818015, 129381618, 215636030, 323454045, 646908090]

約数ペア:

[(1, 646908090), (2, 323454045), (3, 215636030), (5, 129381618), (6, 107818015), (10, 64690809), (15, 43127206), (30, 21563603), (79, 8188710), (107, 6045870), (158, 4094355), (214, 3022935), (237, 2729570), (321, 2015290), (395, 1637742), (474, 1364785), (535, 1209174), (642, 1007645), (790, 818871), (1070, 604587), (1185, 545914), (1605, 403058), (2370, 272957), (2551, 253590), (3210, 201529), (5102, 126795), (7653, 84530), (8453, 76530), (12755, 50718), (15306, 42265), (16906, 38265), (25359, 25510)]