81996640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46589}}^1$

素因数の和:46615

約数の個数: 48

約数和(自身を含む): 211332240

約数和(自身を除く): 129335600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 46589, 93178, 186356, 232945, 372712, 465890, 512479, 745424, 931780, 1024958, 1490848, 1863560, 2049916, 2562395, 3727120, 4099832, 5124790, 7454240, 8199664, 10249580, 16399328, 20499160, 40998320, 81996640]

約数ペア:

[(1, 81996640), (2, 40998320), (4, 20499160), (5, 16399328), (8, 10249580), (10, 8199664), (11, 7454240), (16, 5124790), (20, 4099832), (22, 3727120), (32, 2562395), (40, 2049916), (44, 1863560), (55, 1490848), (80, 1024958), (88, 931780), (110, 745424), (160, 512479), (176, 465890), (220, 372712), (352, 232945), (440, 186356), (880, 93178), (1760, 46589)]