20858768128

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{238943}}^1$

素因数の和:239001

約数の個数: 72

約数和(自身を含む): 46886547456

約数和(自身を除く): 26027779328

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 124, 128, 176, 248, 256, 341, 352, 496, 682, 704, 992, 1364, 1408, 1984, 2728, 2816, 3968, 5456, 7936, 10912, 21824, 43648, 87296, 238943, 477886, 955772, 1911544, 2628373, 3823088, 5256746, 7407233, 7646176, 10513492, 14814466, 15292352, 21026984, 29628932, 30584704, 42053968, 59257864, 61169408, 81479563, 84107936, 118515728, 162959126, 168215872, 237031456, 325918252, 336431744, 474062912, 651836504, 672863488, 948125824, 1303673008, 1896251648, 2607346016, 5214692032, 10429384064, 20858768128]

約数ペア:

[(1, 20858768128), (2, 10429384064), (4, 5214692032), (8, 2607346016), (11, 1896251648), (16, 1303673008), (22, 948125824), (31, 672863488), (32, 651836504), (44, 474062912), (62, 336431744), (64, 325918252), (88, 237031456), (124, 168215872), (128, 162959126), (176, 118515728), (248, 84107936), (256, 81479563), (341, 61169408), (352, 59257864), (496, 42053968), (682, 30584704), (704, 29628932), (992, 21026984), (1364, 15292352), (1408, 14814466), (1984, 10513492), (2728, 7646176), (2816, 7407233), (3968, 5256746), (5456, 3823088), (7936, 2628373), (10912, 1911544), (21824, 955772), (43648, 477886), (87296, 238943)]