31002440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{421}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 80213760

約数和(自身を除く): 49211320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 263, 280, 421, 526, 842, 1052, 1315, 1684, 1841, 2104, 2105, 2630, 2947, 3368, 3682, 4210, 5260, 5894, 7364, 8420, 9205, 10520, 11788, 14728, 14735, 16840, 18410, 23576, 29470, 36820, 58940, 73640, 110723, 117880, 221446, 442892, 553615, 775061, 885784, 1107230, 1550122, 2214460, 3100244, 3875305, 4428920, 6200488, 7750610, 15501220, 31002440]

約数ペア:

[(1, 31002440), (2, 15501220), (4, 7750610), (5, 6200488), (7, 4428920), (8, 3875305), (10, 3100244), (14, 2214460), (20, 1550122), (28, 1107230), (35, 885784), (40, 775061), (56, 553615), (70, 442892), (140, 221446), (263, 117880), (280, 110723), (421, 73640), (526, 58940), (842, 36820), (1052, 29470), (1315, 23576), (1684, 18410), (1841, 16840), (2104, 14735), (2105, 14728), (2630, 11788), (2947, 10520), (3368, 9205), (3682, 8420), (4210, 7364), (5260, 5894)]