225542020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{11519}}^1$

素因数の和:11628

約数の個数: 48

約数和(自身を含む): 522547200

約数和(自身を除く): 297005180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 11519, 19580, 23038, 46076, 57595, 115190, 126709, 230380, 253418, 506836, 633545, 1025191, 1267090, 2050382, 2534180, 4100764, 5125955, 10251910, 11277101, 20503820, 22554202, 45108404, 56385505, 112771010, 225542020]

約数ペア:

[(1, 225542020), (2, 112771010), (4, 56385505), (5, 45108404), (10, 22554202), (11, 20503820), (20, 11277101), (22, 10251910), (44, 5125955), (55, 4100764), (89, 2534180), (110, 2050382), (178, 1267090), (220, 1025191), (356, 633545), (445, 506836), (890, 253418), (979, 230380), (1780, 126709), (1958, 115190), (3916, 57595), (4895, 46076), (9790, 23038), (11519, 19580)]