199481880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127873}}^1$

素因数の和:127900

約数の個数: 64

約数和(自身を含む): 644484960

約数和(自身を除く): 445003080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 127873, 255746, 383619, 511492, 639365, 767238, 1022984, 1278730, 1534476, 1662349, 1918095, 2557460, 3068952, 3324698, 3836190, 4987047, 5114920, 6649396, 7672380, 8311745, 9974094, 13298792, 15344760, 16623490, 19948188, 24935235, 33246980, 39896376, 49870470, 66493960, 99740940, 199481880]

約数ペア:

[(1, 199481880), (2, 99740940), (3, 66493960), (4, 49870470), (5, 39896376), (6, 33246980), (8, 24935235), (10, 19948188), (12, 16623490), (13, 15344760), (15, 13298792), (20, 9974094), (24, 8311745), (26, 7672380), (30, 6649396), (39, 5114920), (40, 4987047), (52, 3836190), (60, 3324698), (65, 3068952), (78, 2557460), (104, 1918095), (120, 1662349), (130, 1534476), (156, 1278730), (195, 1022984), (260, 767238), (312, 639365), (390, 511492), (520, 383619), (780, 255746), (1560, 127873)]