19411580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 23166340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 131, 155, 239, 262, 310, 478, 524, 620, 655, 956, 1195, 1310, 2390, 2620, 4061, 4780, 7409, 8122, 14818, 16244, 20305, 29636, 31309, 37045, 40610, 62618, 74090, 81220, 125236, 148180, 156545, 313090, 626180, 970579, 1941158, 3882316, 4852895, 9705790, 19411580]

約数ペア:

[(1, 19411580), (2, 9705790), (4, 4852895), (5, 3882316), (10, 1941158), (20, 970579), (31, 626180), (62, 313090), (124, 156545), (131, 148180), (155, 125236), (239, 81220), (262, 74090), (310, 62618), (478, 40610), (524, 37045), (620, 31309), (655, 29636), (956, 20305), (1195, 16244), (1310, 14818), (2390, 8122), (2620, 7409), (4061, 4780)]