643619488

素因数分解:

$2^5\times {\mathrm{23}}^2\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:446

約数の個数: 72

約数和(自身を含む): 1338235668

約数和(自身を除く): 694616180

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 184, 193, 197, 368, 386, 394, 529, 736, 772, 788, 1058, 1544, 1576, 2116, 3088, 3152, 4232, 4439, 4531, 6176, 6304, 8464, 8878, 9062, 16928, 17756, 18124, 35512, 36248, 38021, 71024, 72496, 76042, 102097, 104213, 142048, 144992, 152084, 204194, 208426, 304168, 408388, 416852, 608336, 816776, 833704, 874483, 1216672, 1633552, 1667408, 1748966, 3267104, 3334816, 3497932, 6995864, 13991728, 20113109, 27983456, 40226218, 80452436, 160904872, 321809744, 643619488]

約数ペア:

[(1, 643619488), (2, 321809744), (4, 160904872), (8, 80452436), (16, 40226218), (23, 27983456), (32, 20113109), (46, 13991728), (92, 6995864), (184, 3497932), (193, 3334816), (197, 3267104), (368, 1748966), (386, 1667408), (394, 1633552), (529, 1216672), (736, 874483), (772, 833704), (788, 816776), (1058, 608336), (1544, 416852), (1576, 408388), (2116, 304168), (3088, 208426), (3152, 204194), (4232, 152084), (4439, 144992), (4531, 142048), (6176, 104213), (6304, 102097), (8464, 76042), (8878, 72496), (9062, 71024), (16928, 38021), (17756, 36248), (18124, 35512)]