77687820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61657}}^1$

素因数の和:61679

約数の個数: 72

約数和(自身を含む): 269322144

約数和(自身を除く): 191634324

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 61657, 123314, 184971, 246628, 308285, 369942, 431599, 554913, 616570, 739884, 863198, 924855, 1109826, 1233140, 1294797, 1726396, 1849710, 2157995, 2219652, 2589594, 2774565, 3699420, 3884391, 4315990, 5179188, 5549130, 6473985, 7768782, 8631980, 11098260, 12947970, 15537564, 19421955, 25895940, 38843910, 77687820]

約数ペア:

[(1, 77687820), (2, 38843910), (3, 25895940), (4, 19421955), (5, 15537564), (6, 12947970), (7, 11098260), (9, 8631980), (10, 7768782), (12, 6473985), (14, 5549130), (15, 5179188), (18, 4315990), (20, 3884391), (21, 3699420), (28, 2774565), (30, 2589594), (35, 2219652), (36, 2157995), (42, 1849710), (45, 1726396), (60, 1294797), (63, 1233140), (70, 1109826), (84, 924855), (90, 863198), (105, 739884), (126, 616570), (140, 554913), (180, 431599), (210, 369942), (252, 308285), (315, 246628), (420, 184971), (630, 123314), (1260, 61657)]