121212400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:467

約数の個数: 120

約数和(自身を含む): 314823600

約数和(自身を除く): 193611200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 41, 50, 76, 80, 82, 95, 100, 152, 164, 190, 200, 205, 304, 328, 380, 389, 400, 410, 475, 656, 760, 778, 779, 820, 950, 1025, 1520, 1556, 1558, 1640, 1900, 1945, 2050, 3112, 3116, 3280, 3800, 3890, 3895, 4100, 6224, 6232, 7391, 7600, 7780, 7790, 8200, 9725, 12464, 14782, 15560, 15580, 15949, 16400, 19450, 19475, 29564, 31120, 31160, 31898, 36955, 38900, 38950, 59128, 62320, 63796, 73910, 77800, 77900, 79745, 118256, 127592, 147820, 155600, 155800, 159490, 184775, 255184, 295640, 303031, 311600, 318980, 369550, 398725, 591280, 606062, 637960, 739100, 797450, 1212124, 1275920, 1478200, 1515155, 1594900, 2424248, 2956400, 3030310, 3189800, 4848496, 6060620, 6379600, 7575775, 12121240, 15151550, 24242480, 30303100, 60606200, 121212400]

約数ペア:

[(1, 121212400), (2, 60606200), (4, 30303100), (5, 24242480), (8, 15151550), (10, 12121240), (16, 7575775), (19, 6379600), (20, 6060620), (25, 4848496), (38, 3189800), (40, 3030310), (41, 2956400), (50, 2424248), (76, 1594900), (80, 1515155), (82, 1478200), (95, 1275920), (100, 1212124), (152, 797450), (164, 739100), (190, 637960), (200, 606062), (205, 591280), (304, 398725), (328, 369550), (380, 318980), (389, 311600), (400, 303031), (410, 295640), (475, 255184), (656, 184775), (760, 159490), (778, 155800), (779, 155600), (820, 147820), (950, 127592), (1025, 118256), (1520, 79745), (1556, 77900), (1558, 77800), (1640, 73910), (1900, 63796), (1945, 62320), (2050, 59128), (3112, 38950), (3116, 38900), (3280, 36955), (3800, 31898), (3890, 31160), (3895, 31120), (4100, 29564), (6224, 19475), (6232, 19450), (7391, 16400), (7600, 15949), (7780, 15580), (7790, 15560), (8200, 14782), (9725, 12464)]