287999572

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1\times {\mathrm{457}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 587236608

約数和(自身を除く): 299237036

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 317, 457, 497, 634, 914, 994, 1268, 1828, 1988, 2219, 3199, 4438, 6398, 8876, 12796, 22507, 32447, 45014, 64894, 90028, 129788, 144869, 157549, 227129, 289738, 315098, 454258, 579476, 630196, 908516, 1014083, 2028166, 4056332, 10285699, 20571398, 41142796, 71999893, 143999786, 287999572]

約数ペア:

[(1, 287999572), (2, 143999786), (4, 71999893), (7, 41142796), (14, 20571398), (28, 10285699), (71, 4056332), (142, 2028166), (284, 1014083), (317, 908516), (457, 630196), (497, 579476), (634, 454258), (914, 315098), (994, 289738), (1268, 227129), (1828, 157549), (1988, 144869), (2219, 129788), (3199, 90028), (4438, 64894), (6398, 45014), (8876, 32447), (12796, 22507)]