19478800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:281

約数の個数: 120

約数和(自身を含む): 53969760

約数和(自身を除く): 34490960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 25, 38, 40, 44, 50, 55, 76, 80, 88, 95, 100, 110, 152, 176, 190, 200, 209, 220, 233, 275, 304, 380, 400, 418, 440, 466, 475, 550, 760, 836, 880, 932, 950, 1045, 1100, 1165, 1520, 1672, 1864, 1900, 2090, 2200, 2330, 2563, 3344, 3728, 3800, 4180, 4400, 4427, 4660, 5126, 5225, 5825, 7600, 8360, 8854, 9320, 10252, 10450, 11650, 12815, 16720, 17708, 18640, 20504, 20900, 22135, 23300, 25630, 35416, 41008, 41800, 44270, 46600, 48697, 51260, 64075, 70832, 83600, 88540, 93200, 97394, 102520, 110675, 128150, 177080, 194788, 205040, 221350, 243485, 256300, 354160, 389576, 442700, 486970, 512600, 779152, 885400, 973940, 1025200, 1217425, 1770800, 1947880, 2434850, 3895760, 4869700, 9739400, 19478800]

約数ペア:

[(1, 19478800), (2, 9739400), (4, 4869700), (5, 3895760), (8, 2434850), (10, 1947880), (11, 1770800), (16, 1217425), (19, 1025200), (20, 973940), (22, 885400), (25, 779152), (38, 512600), (40, 486970), (44, 442700), (50, 389576), (55, 354160), (76, 256300), (80, 243485), (88, 221350), (95, 205040), (100, 194788), (110, 177080), (152, 128150), (176, 110675), (190, 102520), (200, 97394), (209, 93200), (220, 88540), (233, 83600), (275, 70832), (304, 64075), (380, 51260), (400, 48697), (418, 46600), (440, 44270), (466, 41800), (475, 41008), (550, 35416), (760, 25630), (836, 23300), (880, 22135), (932, 20900), (950, 20504), (1045, 18640), (1100, 17708), (1165, 16720), (1520, 12815), (1672, 11650), (1864, 10450), (1900, 10252), (2090, 9320), (2200, 8854), (2330, 8360), (2563, 7600), (3344, 5825), (3728, 5225), (3800, 5126), (4180, 4660), (4400, 4427)]