20798907872

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{395597}}^1$

素因数の和:395691

約数の個数: 48

約数和(自身を含む): 43066380672

約数和(自身を除く): 22267472800

約数列:

[1, 2, 4, 8, 16, 31, 32, 53, 62, 106, 124, 212, 248, 424, 496, 848, 992, 1643, 1696, 3286, 6572, 13144, 26288, 52576, 395597, 791194, 1582388, 3164776, 6329552, 12263507, 12659104, 20966641, 24527014, 41933282, 49054028, 83866564, 98108056, 167733128, 196216112, 335466256, 392432224, 649965871, 670932512, 1299931742, 2599863484, 5199726968, 10399453936, 20798907872]

約数ペア:

[(1, 20798907872), (2, 10399453936), (4, 5199726968), (8, 2599863484), (16, 1299931742), (31, 670932512), (32, 649965871), (53, 392432224), (62, 335466256), (106, 196216112), (124, 167733128), (212, 98108056), (248, 83866564), (424, 49054028), (496, 41933282), (848, 24527014), (992, 20966641), (1643, 12659104), (1696, 12263507), (3286, 6329552), (6572, 3164776), (13144, 1582388), (26288, 791194), (52576, 395597)]