290640128

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{691}}^1$

素因数の和:791

約数の個数: 72

約数和(自身を含む): 611041536

約数和(自身を除く): 320401408

約数列:

[1, 2, 4, 8, 16, 31, 32, 53, 62, 64, 106, 124, 128, 212, 248, 256, 424, 496, 691, 848, 992, 1382, 1643, 1696, 1984, 2764, 3286, 3392, 3968, 5528, 6572, 6784, 7936, 11056, 13144, 13568, 21421, 22112, 26288, 36623, 42842, 44224, 52576, 73246, 85684, 88448, 105152, 146492, 171368, 176896, 210304, 292984, 342736, 420608, 585968, 685472, 1135313, 1171936, 1370944, 2270626, 2343872, 2741888, 4541252, 4687744, 5483776, 9082504, 9375488, 18165008, 36330016, 72660032, 145320064, 290640128]

約数ペア:

[(1, 290640128), (2, 145320064), (4, 72660032), (8, 36330016), (16, 18165008), (31, 9375488), (32, 9082504), (53, 5483776), (62, 4687744), (64, 4541252), (106, 2741888), (124, 2343872), (128, 2270626), (212, 1370944), (248, 1171936), (256, 1135313), (424, 685472), (496, 585968), (691, 420608), (848, 342736), (992, 292984), (1382, 210304), (1643, 176896), (1696, 171368), (1984, 146492), (2764, 105152), (3286, 88448), (3392, 85684), (3968, 73246), (5528, 52576), (6572, 44224), (6784, 42842), (7936, 36623), (11056, 26288), (13144, 22112), (13568, 21421)]