77478200

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20389}}^1$

素因数の和:20424

約数の個数: 48

約数和(自身を含む): 189627000

約数和(自身を除く): 112148800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 20389, 40778, 81556, 101945, 163112, 203890, 387391, 407780, 509725, 774782, 815560, 1019450, 1549564, 1936955, 2038900, 3099128, 3873910, 4077800, 7747820, 9684775, 15495640, 19369550, 38739100, 77478200]

約数ペア:

[(1, 77478200), (2, 38739100), (4, 19369550), (5, 15495640), (8, 9684775), (10, 7747820), (19, 4077800), (20, 3873910), (25, 3099128), (38, 2038900), (40, 1936955), (50, 1549564), (76, 1019450), (95, 815560), (100, 774782), (152, 509725), (190, 407780), (200, 387391), (380, 203890), (475, 163112), (760, 101945), (950, 81556), (1900, 40778), (3800, 20389)]