31538920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1543}}^1$

素因数の和:1634

約数の個数: 64

約数和(自身を含む): 82264320

約数和(自身を除く): 50725400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 1543, 2044, 2555, 2920, 3086, 4088, 5110, 6172, 7715, 10220, 10801, 12344, 15430, 20440, 21602, 30860, 43204, 54005, 61720, 86408, 108010, 112639, 216020, 225278, 432040, 450556, 563195, 788473, 901112, 1126390, 1576946, 2252780, 3153892, 3942365, 4505560, 6307784, 7884730, 15769460, 31538920]

約数ペア:

[(1, 31538920), (2, 15769460), (4, 7884730), (5, 6307784), (7, 4505560), (8, 3942365), (10, 3153892), (14, 2252780), (20, 1576946), (28, 1126390), (35, 901112), (40, 788473), (56, 563195), (70, 450556), (73, 432040), (140, 225278), (146, 216020), (280, 112639), (292, 108010), (365, 86408), (511, 61720), (584, 54005), (730, 43204), (1022, 30860), (1460, 21602), (1543, 20440), (2044, 15430), (2555, 12344), (2920, 10801), (3086, 10220), (4088, 7715), (5110, 6172)]