20485728

素因数分解:

$2^5\times 3^2\times {\mathrm{83}}^1\times {\mathrm{857}}^1$

素因数の和:956

約数の個数: 72

約数和(自身を含む): 59026968

約数和(自身を除く): 38541240

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 83, 96, 144, 166, 249, 288, 332, 498, 664, 747, 857, 996, 1328, 1494, 1714, 1992, 2571, 2656, 2988, 3428, 3984, 5142, 5976, 6856, 7713, 7968, 10284, 11952, 13712, 15426, 20568, 23904, 27424, 30852, 41136, 61704, 71131, 82272, 123408, 142262, 213393, 246816, 284524, 426786, 569048, 640179, 853572, 1138096, 1280358, 1707144, 2276192, 2560716, 3414288, 5121432, 6828576, 10242864, 20485728]

約数ペア:

[(1, 20485728), (2, 10242864), (3, 6828576), (4, 5121432), (6, 3414288), (8, 2560716), (9, 2276192), (12, 1707144), (16, 1280358), (18, 1138096), (24, 853572), (32, 640179), (36, 569048), (48, 426786), (72, 284524), (83, 246816), (96, 213393), (144, 142262), (166, 123408), (249, 82272), (288, 71131), (332, 61704), (498, 41136), (664, 30852), (747, 27424), (857, 23904), (996, 20568), (1328, 15426), (1494, 13712), (1714, 11952), (1992, 10284), (2571, 7968), (2656, 7713), (2988, 6856), (3428, 5976), (3984, 5142)]