20338380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1097}}^1$

素因数の和:1215

約数の個数: 72

約数和(自身を含む): 62348832

約数和(自身を除く): 42010452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 103, 180, 206, 309, 412, 515, 618, 927, 1030, 1097, 1236, 1545, 1854, 2060, 2194, 3090, 3291, 3708, 4388, 4635, 5485, 6180, 6582, 9270, 9873, 10970, 13164, 16455, 18540, 19746, 21940, 32910, 39492, 49365, 65820, 98730, 112991, 197460, 225982, 338973, 451964, 564955, 677946, 1016919, 1129910, 1355892, 1694865, 2033838, 2259820, 3389730, 4067676, 5084595, 6779460, 10169190, 20338380]

約数ペア:

[(1, 20338380), (2, 10169190), (3, 6779460), (4, 5084595), (5, 4067676), (6, 3389730), (9, 2259820), (10, 2033838), (12, 1694865), (15, 1355892), (18, 1129910), (20, 1016919), (30, 677946), (36, 564955), (45, 451964), (60, 338973), (90, 225982), (103, 197460), (180, 112991), (206, 98730), (309, 65820), (412, 49365), (515, 39492), (618, 32910), (927, 21940), (1030, 19746), (1097, 18540), (1236, 16455), (1545, 13164), (1854, 10970), (2060, 9873), (2194, 9270), (3090, 6582), (3291, 6180), (3708, 5485), (4388, 4635)]