409491140

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1\times {\mathrm{1069}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 873633600

約数和(自身を除く): 464142460

約数列:

[1, 2, 4, 5, 10, 20, 107, 179, 214, 358, 428, 535, 716, 895, 1069, 1070, 1790, 2138, 2140, 3580, 4276, 5345, 10690, 19153, 21380, 38306, 76612, 95765, 114383, 191351, 191530, 228766, 382702, 383060, 457532, 571915, 765404, 956755, 1143830, 1913510, 2287660, 3827020, 20474557, 40949114, 81898228, 102372785, 204745570, 409491140]

約数ペア:

[(1, 409491140), (2, 204745570), (4, 102372785), (5, 81898228), (10, 40949114), (20, 20474557), (107, 3827020), (179, 2287660), (214, 1913510), (358, 1143830), (428, 956755), (535, 765404), (716, 571915), (895, 457532), (1069, 383060), (1070, 382702), (1790, 228766), (2138, 191530), (2140, 191351), (3580, 114383), (4276, 95765), (5345, 76612), (10690, 38306), (19153, 21380)]