28091200

素因数分解:

$2^6\times 5^2\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:300

約数の個数: 84

約数和(自身を含む): 70220332

約数和(自身を除く): 42129132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 97, 100, 160, 181, 194, 200, 320, 362, 388, 400, 485, 724, 776, 800, 905, 970, 1448, 1552, 1600, 1810, 1940, 2425, 2896, 3104, 3620, 3880, 4525, 4850, 5792, 6208, 7240, 7760, 9050, 9700, 11584, 14480, 15520, 17557, 18100, 19400, 28960, 31040, 35114, 36200, 38800, 57920, 70228, 72400, 77600, 87785, 140456, 144800, 155200, 175570, 280912, 289600, 351140, 438925, 561824, 702280, 877850, 1123648, 1404560, 1755700, 2809120, 3511400, 5618240, 7022800, 14045600, 28091200]

約数ペア:

[(1, 28091200), (2, 14045600), (4, 7022800), (5, 5618240), (8, 3511400), (10, 2809120), (16, 1755700), (20, 1404560), (25, 1123648), (32, 877850), (40, 702280), (50, 561824), (64, 438925), (80, 351140), (97, 289600), (100, 280912), (160, 175570), (181, 155200), (194, 144800), (200, 140456), (320, 87785), (362, 77600), (388, 72400), (400, 70228), (485, 57920), (724, 38800), (776, 36200), (800, 35114), (905, 31040), (970, 28960), (1448, 19400), (1552, 18100), (1600, 17557), (1810, 15520), (1940, 14480), (2425, 11584), (2896, 9700), (3104, 9050), (3620, 7760), (3880, 7240), (4525, 6208), (4850, 5792)]