20564000

素因数分解:

$2^5\times 5^3\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 52009776

約数和(自身を除く): 31445776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 53, 80, 97, 100, 106, 125, 160, 194, 200, 212, 250, 265, 388, 400, 424, 485, 500, 530, 776, 800, 848, 970, 1000, 1060, 1325, 1552, 1696, 1940, 2000, 2120, 2425, 2650, 3104, 3880, 4000, 4240, 4850, 5141, 5300, 6625, 7760, 8480, 9700, 10282, 10600, 12125, 13250, 15520, 19400, 20564, 21200, 24250, 25705, 26500, 38800, 41128, 42400, 48500, 51410, 53000, 77600, 82256, 97000, 102820, 106000, 128525, 164512, 194000, 205640, 212000, 257050, 388000, 411280, 514100, 642625, 822560, 1028200, 1285250, 2056400, 2570500, 4112800, 5141000, 10282000, 20564000]

約数ペア:

[(1, 20564000), (2, 10282000), (4, 5141000), (5, 4112800), (8, 2570500), (10, 2056400), (16, 1285250), (20, 1028200), (25, 822560), (32, 642625), (40, 514100), (50, 411280), (53, 388000), (80, 257050), (97, 212000), (100, 205640), (106, 194000), (125, 164512), (160, 128525), (194, 106000), (200, 102820), (212, 97000), (250, 82256), (265, 77600), (388, 53000), (400, 51410), (424, 48500), (485, 42400), (500, 41128), (530, 38800), (776, 26500), (800, 25705), (848, 24250), (970, 21200), (1000, 20564), (1060, 19400), (1325, 15520), (1552, 13250), (1696, 12125), (1940, 10600), (2000, 10282), (2120, 9700), (2425, 8480), (2650, 7760), (3104, 6625), (3880, 5300), (4000, 5141), (4240, 4850)]