20348540380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1\times {\mathrm{3089}}^1$

素因数の和:3539

約数の個数: 96

約数和(自身を含む): 49303941120

約数和(自身を除く): 28955400740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 223, 422, 446, 844, 892, 1055, 1115, 1477, 1561, 2110, 2230, 2954, 3089, 3122, 4220, 4460, 5908, 6178, 6244, 7385, 7805, 12356, 14770, 15445, 15610, 21623, 29540, 30890, 31220, 43246, 47053, 61780, 86492, 94106, 108115, 188212, 216230, 235265, 329371, 432460, 470530, 651779, 658742, 688847, 941060, 1303558, 1317484, 1377694, 1646855, 2607116, 2755388, 3258895, 3293710, 3444235, 4562453, 4821929, 6517790, 6587420, 6888470, 9124906, 9643858, 13035580, 13776940, 18249812, 19287716, 22812265, 24109645, 45624530, 48219290, 91249060, 96438580, 145346717, 290693434, 581386868, 726733585, 1017427019, 1453467170, 2034854038, 2906934340, 4069708076, 5087135095, 10174270190, 20348540380]

約数ペア:

[(1, 20348540380), (2, 10174270190), (4, 5087135095), (5, 4069708076), (7, 2906934340), (10, 2034854038), (14, 1453467170), (20, 1017427019), (28, 726733585), (35, 581386868), (70, 290693434), (140, 145346717), (211, 96438580), (223, 91249060), (422, 48219290), (446, 45624530), (844, 24109645), (892, 22812265), (1055, 19287716), (1115, 18249812), (1477, 13776940), (1561, 13035580), (2110, 9643858), (2230, 9124906), (2954, 6888470), (3089, 6587420), (3122, 6517790), (4220, 4821929), (4460, 4562453), (5908, 3444235), (6178, 3293710), (6244, 3258895), (7385, 2755388), (7805, 2607116), (12356, 1646855), (14770, 1377694), (15445, 1317484), (15610, 1303558), (21623, 941060), (29540, 688847), (30890, 658742), (31220, 651779), (43246, 470530), (47053, 432460), (61780, 329371), (86492, 235265), (94106, 216230), (108115, 188212)]