8268990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 21254400

約数和(自身を除く): 12985410

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 89, 95, 114, 163, 178, 190, 267, 285, 326, 445, 489, 534, 570, 815, 890, 978, 1335, 1630, 1691, 2445, 2670, 3097, 3382, 4890, 5073, 6194, 8455, 9291, 10146, 14507, 15485, 16910, 18582, 25365, 29014, 30970, 43521, 46455, 50730, 72535, 87042, 92910, 145070, 217605, 275633, 435210, 551266, 826899, 1378165, 1653798, 2756330, 4134495, 8268990]

約数ペア:

[(1, 8268990), (2, 4134495), (3, 2756330), (5, 1653798), (6, 1378165), (10, 826899), (15, 551266), (19, 435210), (30, 275633), (38, 217605), (57, 145070), (89, 92910), (95, 87042), (114, 72535), (163, 50730), (178, 46455), (190, 43521), (267, 30970), (285, 29014), (326, 25365), (445, 18582), (489, 16910), (534, 15485), (570, 14507), (815, 10146), (890, 9291), (978, 8455), (1335, 6194), (1630, 5073), (1691, 4890), (2445, 3382), (2670, 3097)]