20974920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1697}}^1$

素因数の和:1814

約数の個数: 64

約数和(自身を含む): 63573120

約数和(自身を除く): 42598200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 103, 120, 206, 309, 412, 515, 618, 824, 1030, 1236, 1545, 1697, 2060, 2472, 3090, 3394, 4120, 5091, 6180, 6788, 8485, 10182, 12360, 13576, 16970, 20364, 25455, 33940, 40728, 50910, 67880, 101820, 174791, 203640, 349582, 524373, 699164, 873955, 1048746, 1398328, 1747910, 2097492, 2621865, 3495820, 4194984, 5243730, 6991640, 10487460, 20974920]

約数ペア:

[(1, 20974920), (2, 10487460), (3, 6991640), (4, 5243730), (5, 4194984), (6, 3495820), (8, 2621865), (10, 2097492), (12, 1747910), (15, 1398328), (20, 1048746), (24, 873955), (30, 699164), (40, 524373), (60, 349582), (103, 203640), (120, 174791), (206, 101820), (309, 67880), (412, 50910), (515, 40728), (618, 33940), (824, 25455), (1030, 20364), (1236, 16970), (1545, 13576), (1697, 12360), (2060, 10182), (2472, 8485), (3090, 6788), (3394, 6180), (4120, 5091)]