20462976

素因数分解:

$2^7\times 3^3\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 62668800

約数和(自身を除く): 42205824

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 32, 36, 48, 54, 62, 64, 72, 93, 96, 108, 124, 128, 144, 186, 191, 192, 216, 248, 279, 288, 372, 382, 384, 432, 496, 558, 573, 576, 744, 764, 837, 864, 992, 1116, 1146, 1152, 1488, 1528, 1674, 1719, 1728, 1984, 2232, 2292, 2976, 3056, 3348, 3438, 3456, 3968, 4464, 4584, 5157, 5921, 5952, 6112, 6696, 6876, 8928, 9168, 10314, 11842, 11904, 12224, 13392, 13752, 17763, 17856, 18336, 20628, 23684, 24448, 26784, 27504, 35526, 35712, 36672, 41256, 47368, 53289, 53568, 55008, 71052, 73344, 82512, 94736, 106578, 107136, 110016, 142104, 159867, 165024, 189472, 213156, 220032, 284208, 319734, 330048, 378944, 426312, 568416, 639468, 660096, 757888, 852624, 1136832, 1278936, 1705248, 2273664, 2557872, 3410496, 5115744, 6820992, 10231488, 20462976]

約数ペア:

[(1, 20462976), (2, 10231488), (3, 6820992), (4, 5115744), (6, 3410496), (8, 2557872), (9, 2273664), (12, 1705248), (16, 1278936), (18, 1136832), (24, 852624), (27, 757888), (31, 660096), (32, 639468), (36, 568416), (48, 426312), (54, 378944), (62, 330048), (64, 319734), (72, 284208), (93, 220032), (96, 213156), (108, 189472), (124, 165024), (128, 159867), (144, 142104), (186, 110016), (191, 107136), (192, 106578), (216, 94736), (248, 82512), (279, 73344), (288, 71052), (372, 55008), (382, 53568), (384, 53289), (432, 47368), (496, 41256), (558, 36672), (573, 35712), (576, 35526), (744, 27504), (764, 26784), (837, 24448), (864, 23684), (992, 20628), (1116, 18336), (1146, 17856), (1152, 17763), (1488, 13752), (1528, 13392), (1674, 12224), (1719, 11904), (1728, 11842), (1984, 10314), (2232, 9168), (2292, 8928), (2976, 6876), (3056, 6696), (3348, 6112), (3438, 5952), (3456, 5921), (3968, 5157), (4464, 4584)]