19237790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1223}}^1$

素因数の和:1265

約数の個数: 48

約数和(自身を含む): 41023584

約数和(自身を除く): 21785794

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1223, 1430, 1573, 2446, 3146, 6115, 7865, 12230, 13453, 15730, 15899, 26906, 31798, 67265, 79495, 134530, 147983, 158990, 174889, 295966, 349778, 739915, 874445, 1479830, 1748890, 1923779, 3847558, 9618895, 19237790]

約数ペア:

[(1, 19237790), (2, 9618895), (5, 3847558), (10, 1923779), (11, 1748890), (13, 1479830), (22, 874445), (26, 739915), (55, 349778), (65, 295966), (110, 174889), (121, 158990), (130, 147983), (143, 134530), (242, 79495), (286, 67265), (605, 31798), (715, 26906), (1210, 15899), (1223, 15730), (1430, 13453), (1573, 12230), (2446, 7865), (3146, 6115)]