644617472

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1889}}^1$

素因数の和:1979

約数の個数: 72

約数和(自身を含む): 1359832320

約数和(自身を除く): 715214848

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 64, 86, 124, 128, 172, 248, 256, 344, 496, 688, 992, 1333, 1376, 1889, 1984, 2666, 2752, 3778, 3968, 5332, 5504, 7556, 7936, 10664, 11008, 15112, 21328, 30224, 42656, 58559, 60448, 81227, 85312, 117118, 120896, 162454, 170624, 234236, 241792, 324908, 341248, 468472, 483584, 649816, 936944, 1299632, 1873888, 2518037, 2599264, 3747776, 5036074, 5198528, 7495552, 10072148, 10397056, 14991104, 20144296, 20794112, 40288592, 80577184, 161154368, 322308736, 644617472]

約数ペア:

[(1, 644617472), (2, 322308736), (4, 161154368), (8, 80577184), (16, 40288592), (31, 20794112), (32, 20144296), (43, 14991104), (62, 10397056), (64, 10072148), (86, 7495552), (124, 5198528), (128, 5036074), (172, 3747776), (248, 2599264), (256, 2518037), (344, 1873888), (496, 1299632), (688, 936944), (992, 649816), (1333, 483584), (1376, 468472), (1889, 341248), (1984, 324908), (2666, 241792), (2752, 234236), (3778, 170624), (3968, 162454), (5332, 120896), (5504, 117118), (7556, 85312), (7936, 81227), (10664, 60448), (11008, 58559), (15112, 42656), (21328, 30224)]