161490980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{2753}}^1$

素因数の和:3188

約数の個数: 48

約数和(自身を含む): 388644480

約数和(自身を除く): 227153500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 419, 838, 1676, 2095, 2753, 2933, 4190, 5506, 5866, 8380, 11012, 11732, 13765, 14665, 19271, 27530, 29330, 38542, 55060, 58660, 77084, 96355, 192710, 385420, 1153507, 2307014, 4614028, 5767535, 8074549, 11535070, 16149098, 23070140, 32298196, 40372745, 80745490, 161490980]

約数ペア:

[(1, 161490980), (2, 80745490), (4, 40372745), (5, 32298196), (7, 23070140), (10, 16149098), (14, 11535070), (20, 8074549), (28, 5767535), (35, 4614028), (70, 2307014), (140, 1153507), (419, 385420), (838, 192710), (1676, 96355), (2095, 77084), (2753, 58660), (2933, 55060), (4190, 38542), (5506, 29330), (5866, 27530), (8380, 19271), (11012, 14665), (11732, 13765)]