263516440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{613}}^1\times {\mathrm{977}}^1$

素因数の和:1612

約数の個数: 64

約数和(自身を含む): 648531360

約数和(自身を除く): 385014920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 613, 977, 1226, 1954, 2452, 3065, 3908, 4885, 4904, 6130, 6743, 7816, 9770, 10747, 12260, 13486, 19540, 21494, 24520, 26972, 33715, 39080, 42988, 53735, 53944, 67430, 85976, 107470, 134860, 214940, 269720, 429880, 598901, 1197802, 2395604, 2994505, 4791208, 5989010, 6587911, 11978020, 13175822, 23956040, 26351644, 32939555, 52703288, 65879110, 131758220, 263516440]

約数ペア:

[(1, 263516440), (2, 131758220), (4, 65879110), (5, 52703288), (8, 32939555), (10, 26351644), (11, 23956040), (20, 13175822), (22, 11978020), (40, 6587911), (44, 5989010), (55, 4791208), (88, 2994505), (110, 2395604), (220, 1197802), (440, 598901), (613, 429880), (977, 269720), (1226, 214940), (1954, 134860), (2452, 107470), (3065, 85976), (3908, 67430), (4885, 53944), (4904, 53735), (6130, 42988), (6743, 39080), (7816, 33715), (9770, 26972), (10747, 24520), (12260, 21494), (13486, 19540)]