19805550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{29}}^2\times {\mathrm{157}}^1$

素因数の和:230

約数の個数: 72

約数和(自身を含む): 51193896

約数和(自身を除く): 31388346

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 29, 30, 50, 58, 75, 87, 145, 150, 157, 174, 290, 314, 435, 471, 725, 785, 841, 870, 942, 1450, 1570, 1682, 2175, 2355, 2523, 3925, 4205, 4350, 4553, 4710, 5046, 7850, 8410, 9106, 11775, 12615, 13659, 21025, 22765, 23550, 25230, 27318, 42050, 45530, 63075, 68295, 113825, 126150, 132037, 136590, 227650, 264074, 341475, 396111, 660185, 682950, 792222, 1320370, 1980555, 3300925, 3961110, 6601850, 9902775, 19805550]

約数ペア:

[(1, 19805550), (2, 9902775), (3, 6601850), (5, 3961110), (6, 3300925), (10, 1980555), (15, 1320370), (25, 792222), (29, 682950), (30, 660185), (50, 396111), (58, 341475), (75, 264074), (87, 227650), (145, 136590), (150, 132037), (157, 126150), (174, 113825), (290, 68295), (314, 63075), (435, 45530), (471, 42050), (725, 27318), (785, 25230), (841, 23550), (870, 22765), (942, 21025), (1450, 13659), (1570, 12615), (1682, 11775), (2175, 9106), (2355, 8410), (2523, 7850), (3925, 5046), (4205, 4710), (4350, 4553)]