490490

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:52

約数の個数: 64

約数和(自身を含む): 1209600

約数和(自身を除く): 719110

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 49, 55, 65, 70, 77, 91, 98, 110, 130, 143, 154, 182, 245, 286, 343, 385, 455, 490, 539, 637, 686, 715, 770, 910, 1001, 1078, 1274, 1430, 1715, 2002, 2695, 3185, 3430, 3773, 4459, 5005, 5390, 6370, 7007, 7546, 8918, 10010, 14014, 18865, 22295, 35035, 37730, 44590, 49049, 70070, 98098, 245245, 490490]

約数ペア:

[(1, 490490), (2, 245245), (5, 98098), (7, 70070), (10, 49049), (11, 44590), (13, 37730), (14, 35035), (22, 22295), (26, 18865), (35, 14014), (49, 10010), (55, 8918), (65, 7546), (70, 7007), (77, 6370), (91, 5390), (98, 5005), (110, 4459), (130, 3773), (143, 3430), (154, 3185), (182, 2695), (245, 2002), (286, 1715), (343, 1430), (385, 1274), (455, 1078), (490, 1001), (539, 910), (637, 770), (686, 715)]