21627760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3511}}^1$

素因数の和:3542

約数の個数: 80

約数和(自身を含む): 62710272

約数和(自身を除く): 41082512

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 3511, 6160, 7022, 14044, 17555, 24577, 28088, 35110, 38621, 49154, 56176, 70220, 77242, 98308, 122885, 140440, 154484, 193105, 196616, 245770, 270347, 280880, 308968, 386210, 393232, 491540, 540694, 617936, 772420, 983080, 1081388, 1351735, 1544840, 1966160, 2162776, 2703470, 3089680, 4325552, 5406940, 10813880, 21627760]

約数ペア:

[(1, 21627760), (2, 10813880), (4, 5406940), (5, 4325552), (7, 3089680), (8, 2703470), (10, 2162776), (11, 1966160), (14, 1544840), (16, 1351735), (20, 1081388), (22, 983080), (28, 772420), (35, 617936), (40, 540694), (44, 491540), (55, 393232), (56, 386210), (70, 308968), (77, 280880), (80, 270347), (88, 245770), (110, 196616), (112, 193105), (140, 154484), (154, 140440), (176, 122885), (220, 98308), (280, 77242), (308, 70220), (385, 56176), (440, 49154), (560, 38621), (616, 35110), (770, 28088), (880, 24577), (1232, 17555), (1540, 14044), (3080, 7022), (3511, 6160)]