309365780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{1151}}^1$

素因数の和:1400

約数の個数: 48

約数和(自身を含む): 661893120

約数和(自身を除く): 352527340

約数列:

[1, 2, 4, 5, 10, 20, 89, 151, 178, 302, 356, 445, 604, 755, 890, 1151, 1510, 1780, 2302, 3020, 4604, 5755, 11510, 13439, 23020, 26878, 53756, 67195, 102439, 134390, 173801, 204878, 268780, 347602, 409756, 512195, 695204, 869005, 1024390, 1738010, 2048780, 3476020, 15468289, 30936578, 61873156, 77341445, 154682890, 309365780]

約数ペア:

[(1, 309365780), (2, 154682890), (4, 77341445), (5, 61873156), (10, 30936578), (20, 15468289), (89, 3476020), (151, 2048780), (178, 1738010), (302, 1024390), (356, 869005), (445, 695204), (604, 512195), (755, 409756), (890, 347602), (1151, 268780), (1510, 204878), (1780, 173801), (2302, 134390), (3020, 102439), (4604, 67195), (5755, 53756), (11510, 26878), (13439, 23020)]