727898740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{181}}^1\times {\mathrm{557}}^1$

素因数の和:785

約数の個数: 72

約数和(自身を含む): 1625099112

約数和(自身を除く): 897200372

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 181, 190, 361, 362, 380, 557, 722, 724, 905, 1114, 1444, 1805, 1810, 2228, 2785, 3439, 3610, 3620, 5570, 6878, 7220, 10583, 11140, 13756, 17195, 21166, 34390, 42332, 52915, 65341, 68780, 100817, 105830, 130682, 201077, 201634, 211660, 261364, 326705, 402154, 403268, 504085, 653410, 804308, 1005385, 1008170, 1306820, 1915523, 2010770, 2016340, 3831046, 4021540, 7662092, 9577615, 19155230, 36394937, 38310460, 72789874, 145579748, 181974685, 363949370, 727898740]

約数ペア:

[(1, 727898740), (2, 363949370), (4, 181974685), (5, 145579748), (10, 72789874), (19, 38310460), (20, 36394937), (38, 19155230), (76, 9577615), (95, 7662092), (181, 4021540), (190, 3831046), (361, 2016340), (362, 2010770), (380, 1915523), (557, 1306820), (722, 1008170), (724, 1005385), (905, 804308), (1114, 653410), (1444, 504085), (1805, 403268), (1810, 402154), (2228, 326705), (2785, 261364), (3439, 211660), (3610, 201634), (3620, 201077), (5570, 130682), (6878, 105830), (7220, 100817), (10583, 68780), (11140, 65341), (13756, 52915), (17195, 42332), (21166, 34390)]