18265000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 46250820

約数和(自身を除く): 27985820

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 281, 325, 500, 520, 562, 625, 650, 1000, 1124, 1250, 1300, 1405, 1625, 2248, 2500, 2600, 2810, 3250, 3653, 5000, 5620, 6500, 7025, 7306, 8125, 11240, 13000, 14050, 14612, 16250, 18265, 28100, 29224, 32500, 35125, 36530, 56200, 65000, 70250, 73060, 91325, 140500, 146120, 175625, 182650, 281000, 351250, 365300, 456625, 702500, 730600, 913250, 1405000, 1826500, 2283125, 3653000, 4566250, 9132500, 18265000]

約数ペア:

[(1, 18265000), (2, 9132500), (4, 4566250), (5, 3653000), (8, 2283125), (10, 1826500), (13, 1405000), (20, 913250), (25, 730600), (26, 702500), (40, 456625), (50, 365300), (52, 351250), (65, 281000), (100, 182650), (104, 175625), (125, 146120), (130, 140500), (200, 91325), (250, 73060), (260, 70250), (281, 65000), (325, 56200), (500, 36530), (520, 35125), (562, 32500), (625, 29224), (650, 28100), (1000, 18265), (1124, 16250), (1250, 14612), (1300, 14050), (1405, 13000), (1625, 11240), (2248, 8125), (2500, 7306), (2600, 7025), (2810, 6500), (3250, 5620), (3653, 5000)]