20702080

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4621}}^1$

素因数の和:4647

約数の個数: 64

約数和(自身を含む): 56573280

約数和(自身を除く): 35871200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4621, 9242, 18484, 23105, 32347, 36968, 46210, 64694, 73936, 92420, 129388, 147872, 161735, 184840, 258776, 295744, 323470, 369680, 517552, 591488, 646940, 739360, 1035104, 1293880, 1478720, 2070208, 2587760, 2957440, 4140416, 5175520, 10351040, 20702080]

約数ペア:

[(1, 20702080), (2, 10351040), (4, 5175520), (5, 4140416), (7, 2957440), (8, 2587760), (10, 2070208), (14, 1478720), (16, 1293880), (20, 1035104), (28, 739360), (32, 646940), (35, 591488), (40, 517552), (56, 369680), (64, 323470), (70, 295744), (80, 258776), (112, 184840), (128, 161735), (140, 147872), (160, 129388), (224, 92420), (280, 73936), (320, 64694), (448, 46210), (560, 36968), (640, 32347), (896, 23105), (1120, 18484), (2240, 9242), (4480, 4621)]