159678460

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{823}}^1$

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 342619200

約数和(自身を除く): 182940740

約数列:

[1, 2, 4, 5, 10, 20, 89, 109, 178, 218, 356, 436, 445, 545, 823, 890, 1090, 1646, 1780, 2180, 3292, 4115, 8230, 9701, 16460, 19402, 38804, 48505, 73247, 89707, 97010, 146494, 179414, 194020, 292988, 358828, 366235, 448535, 732470, 897070, 1464940, 1794140, 7983923, 15967846, 31935692, 39919615, 79839230, 159678460]

約数ペア:

[(1, 159678460), (2, 79839230), (4, 39919615), (5, 31935692), (10, 15967846), (20, 7983923), (89, 1794140), (109, 1464940), (178, 897070), (218, 732470), (356, 448535), (436, 366235), (445, 358828), (545, 292988), (823, 194020), (890, 179414), (1090, 146494), (1646, 97010), (1780, 89707), (2180, 73247), (3292, 48505), (4115, 38804), (8230, 19402), (9701, 16460)]