990285184

素因数分解:

$2^7\times 7^1\times {\mathrm{43}}^1\times {\mathrm{25703}}^1$

素因数の和:25767

約数の個数: 64

約数和(自身を含む): 2307191040

約数和(自身を除く): 1316905856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 301, 344, 448, 602, 688, 896, 1204, 1376, 2408, 2752, 4816, 5504, 9632, 19264, 25703, 38528, 51406, 102812, 179921, 205624, 359842, 411248, 719684, 822496, 1105229, 1439368, 1644992, 2210458, 2878736, 3289984, 4420916, 5757472, 7736603, 8841832, 11514944, 15473206, 17683664, 23029888, 30946412, 35367328, 61892824, 70734656, 123785648, 141469312, 247571296, 495142592, 990285184]

約数ペア:

[(1, 990285184), (2, 495142592), (4, 247571296), (7, 141469312), (8, 123785648), (14, 70734656), (16, 61892824), (28, 35367328), (32, 30946412), (43, 23029888), (56, 17683664), (64, 15473206), (86, 11514944), (112, 8841832), (128, 7736603), (172, 5757472), (224, 4420916), (301, 3289984), (344, 2878736), (448, 2210458), (602, 1644992), (688, 1439368), (896, 1105229), (1204, 822496), (1376, 719684), (2408, 411248), (2752, 359842), (4816, 205624), (5504, 179921), (9632, 102812), (19264, 51406), (25703, 38528)]