71290390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 139345920

約数和(自身を除く): 68055530

約数列:

[1, 2, 5, 10, 31, 41, 62, 71, 79, 82, 142, 155, 158, 205, 310, 355, 395, 410, 710, 790, 1271, 2201, 2449, 2542, 2911, 3239, 4402, 4898, 5609, 5822, 6355, 6478, 11005, 11218, 12245, 12710, 14555, 16195, 22010, 24490, 28045, 29110, 32390, 56090, 90241, 100409, 173879, 180482, 200818, 229969, 347758, 451205, 459938, 502045, 869395, 902410, 1004090, 1149845, 1738790, 2299690, 7129039, 14258078, 35645195, 71290390]

約数ペア:

[(1, 71290390), (2, 35645195), (5, 14258078), (10, 7129039), (31, 2299690), (41, 1738790), (62, 1149845), (71, 1004090), (79, 902410), (82, 869395), (142, 502045), (155, 459938), (158, 451205), (205, 347758), (310, 229969), (355, 200818), (395, 180482), (410, 173879), (710, 100409), (790, 90241), (1271, 56090), (2201, 32390), (2449, 29110), (2542, 28045), (2911, 24490), (3239, 22010), (4402, 16195), (4898, 14555), (5609, 12710), (5822, 12245), (6355, 11218), (6478, 11005)]