18519680

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1523}}^1$

素因数の和:1561

約数の個数: 64

約数和(自身を含む): 46634400

約数和(自身を除く): 28114720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 1523, 2432, 3040, 3046, 6080, 6092, 7615, 12160, 12184, 15230, 24368, 28937, 30460, 48736, 57874, 60920, 97472, 115748, 121840, 144685, 194944, 231496, 243680, 289370, 462992, 487360, 578740, 925984, 974720, 1157480, 1851968, 2314960, 3703936, 4629920, 9259840, 18519680]

約数ペア:

[(1, 18519680), (2, 9259840), (4, 4629920), (5, 3703936), (8, 2314960), (10, 1851968), (16, 1157480), (19, 974720), (20, 925984), (32, 578740), (38, 487360), (40, 462992), (64, 289370), (76, 243680), (80, 231496), (95, 194944), (128, 144685), (152, 121840), (160, 115748), (190, 97472), (304, 60920), (320, 57874), (380, 48736), (608, 30460), (640, 28937), (760, 24368), (1216, 15230), (1520, 12184), (1523, 12160), (2432, 7615), (3040, 6092), (3046, 6080)]