31349890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2035

約数の個数: 48

約数和(自身を含む): 66830904

約数和(自身を除く): 35481014

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1430, 1573, 1993, 3146, 3986, 7865, 9965, 15730, 19930, 21923, 25909, 43846, 51818, 109615, 129545, 219230, 241153, 259090, 284999, 482306, 569998, 1205765, 1424995, 2411530, 2849990, 3134989, 6269978, 15674945, 31349890]

約数ペア:

[(1, 31349890), (2, 15674945), (5, 6269978), (10, 3134989), (11, 2849990), (13, 2411530), (22, 1424995), (26, 1205765), (55, 569998), (65, 482306), (110, 284999), (121, 259090), (130, 241153), (143, 219230), (242, 129545), (286, 109615), (605, 51818), (715, 43846), (1210, 25909), (1430, 21923), (1573, 19930), (1993, 15730), (3146, 9965), (3986, 7865)]