215407840

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{317}}^1$

素因数の和:500

約数の個数: 96

約数和(自身を含む): 530820864

約数和(自身を除く): 315413024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 137, 155, 160, 248, 274, 310, 317, 496, 548, 620, 634, 685, 992, 1096, 1240, 1268, 1370, 1585, 2192, 2480, 2536, 2740, 3170, 4247, 4384, 4960, 5072, 5480, 6340, 8494, 9827, 10144, 10960, 12680, 16988, 19654, 21235, 21920, 25360, 33976, 39308, 42470, 43429, 49135, 50720, 67952, 78616, 84940, 86858, 98270, 135904, 157232, 169880, 173716, 196540, 217145, 314464, 339760, 347432, 393080, 434290, 679520, 694864, 786160, 868580, 1346299, 1389728, 1572320, 1737160, 2692598, 3474320, 5385196, 6731495, 6948640, 10770392, 13462990, 21540784, 26925980, 43081568, 53851960, 107703920, 215407840]

約数ペア:

[(1, 215407840), (2, 107703920), (4, 53851960), (5, 43081568), (8, 26925980), (10, 21540784), (16, 13462990), (20, 10770392), (31, 6948640), (32, 6731495), (40, 5385196), (62, 3474320), (80, 2692598), (124, 1737160), (137, 1572320), (155, 1389728), (160, 1346299), (248, 868580), (274, 786160), (310, 694864), (317, 679520), (496, 434290), (548, 393080), (620, 347432), (634, 339760), (685, 314464), (992, 217145), (1096, 196540), (1240, 173716), (1268, 169880), (1370, 157232), (1585, 135904), (2192, 98270), (2480, 86858), (2536, 84940), (2740, 78616), (3170, 67952), (4247, 50720), (4384, 49135), (4960, 43429), (5072, 42470), (5480, 39308), (6340, 33976), (8494, 25360), (9827, 21920), (10144, 21235), (10960, 19654), (12680, 16988)]