20728045408

素因数分解:

$2^5\times 7^1\times {\mathrm{1783}}^1\times {\mathrm{51899}}^1$

素因数の和:53699

約数の個数: 48

約数和(自身を含む): 46665158400

約数和(自身を除く): 25937112992

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 1783, 3566, 7132, 12481, 14264, 24962, 28528, 49924, 51899, 57056, 99848, 103798, 199696, 207596, 363293, 399392, 415192, 726586, 830384, 1453172, 1660768, 2906344, 5812688, 11625376, 92535917, 185071834, 370143668, 647751419, 740287336, 1295502838, 1480574672, 2591005676, 2961149344, 5182011352, 10364022704, 20728045408]

約数ペア:

[(1, 20728045408), (2, 10364022704), (4, 5182011352), (7, 2961149344), (8, 2591005676), (14, 1480574672), (16, 1295502838), (28, 740287336), (32, 647751419), (56, 370143668), (112, 185071834), (224, 92535917), (1783, 11625376), (3566, 5812688), (7132, 2906344), (12481, 1660768), (14264, 1453172), (24962, 830384), (28528, 726586), (49924, 415192), (51899, 399392), (57056, 363293), (99848, 207596), (103798, 199696)]