19494650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 72

約数和(自身を含む): 43150140

約数和(自身を除く): 23655490

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 73, 98, 109, 146, 175, 218, 245, 350, 365, 490, 511, 545, 730, 763, 1022, 1090, 1225, 1526, 1825, 2450, 2555, 2725, 3577, 3650, 3815, 5110, 5341, 5450, 7154, 7630, 7957, 10682, 12775, 15914, 17885, 19075, 25550, 26705, 35770, 38150, 39785, 53410, 55699, 79570, 89425, 111398, 133525, 178850, 198925, 267050, 278495, 389893, 397850, 556990, 779786, 1392475, 1949465, 2784950, 3898930, 9747325, 19494650]

約数ペア:

[(1, 19494650), (2, 9747325), (5, 3898930), (7, 2784950), (10, 1949465), (14, 1392475), (25, 779786), (35, 556990), (49, 397850), (50, 389893), (70, 278495), (73, 267050), (98, 198925), (109, 178850), (146, 133525), (175, 111398), (218, 89425), (245, 79570), (350, 55699), (365, 53410), (490, 39785), (511, 38150), (545, 35770), (730, 26705), (763, 25550), (1022, 19075), (1090, 17885), (1225, 15914), (1526, 12775), (1825, 10682), (2450, 7957), (2555, 7630), (2725, 7154), (3577, 5450), (3650, 5341), (3815, 5110)]