19891950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^2$

素因数の和:230

約数の個数: 72

約数和(自身を含む): 53658024

約数和(自身を除く): 33766074

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 101, 130, 150, 195, 202, 303, 325, 390, 505, 606, 650, 975, 1010, 1313, 1515, 1950, 2525, 2626, 3030, 3939, 5050, 6565, 7575, 7878, 10201, 13130, 15150, 19695, 20402, 30603, 32825, 39390, 51005, 61206, 65650, 98475, 102010, 132613, 153015, 196950, 255025, 265226, 306030, 397839, 510050, 663065, 765075, 795678, 1326130, 1530150, 1989195, 3315325, 3978390, 6630650, 9945975, 19891950]

約数ペア:

[(1, 19891950), (2, 9945975), (3, 6630650), (5, 3978390), (6, 3315325), (10, 1989195), (13, 1530150), (15, 1326130), (25, 795678), (26, 765075), (30, 663065), (39, 510050), (50, 397839), (65, 306030), (75, 265226), (78, 255025), (101, 196950), (130, 153015), (150, 132613), (195, 102010), (202, 98475), (303, 65650), (325, 61206), (390, 51005), (505, 39390), (606, 32825), (650, 30603), (975, 20402), (1010, 19695), (1313, 15150), (1515, 13130), (1950, 10201), (2525, 7878), (2626, 7575), (3030, 6565), (3939, 5050)]