18008704

素因数分解:

$2^7\times 7^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 41616000

約数和(自身を除く): 23607296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 101, 112, 128, 199, 202, 224, 398, 404, 448, 707, 796, 808, 896, 1393, 1414, 1592, 1616, 2786, 2828, 3184, 3232, 5572, 5656, 6368, 6464, 11144, 11312, 12736, 12928, 20099, 22288, 22624, 25472, 40198, 44576, 45248, 80396, 89152, 90496, 140693, 160792, 178304, 281386, 321584, 562772, 643168, 1125544, 1286336, 2251088, 2572672, 4502176, 9004352, 18008704]

約数ペア:

[(1, 18008704), (2, 9004352), (4, 4502176), (7, 2572672), (8, 2251088), (14, 1286336), (16, 1125544), (28, 643168), (32, 562772), (56, 321584), (64, 281386), (101, 178304), (112, 160792), (128, 140693), (199, 90496), (202, 89152), (224, 80396), (398, 45248), (404, 44576), (448, 40198), (707, 25472), (796, 22624), (808, 22288), (896, 20099), (1393, 12928), (1414, 12736), (1592, 11312), (1616, 11144), (2786, 6464), (2828, 6368), (3184, 5656), (3232, 5572)]