19468280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1291}}^1$

素因数の和:1344

約数の個数: 64

約数和(自身を含む): 48837600

約数和(自身を除く): 29369320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1160, 1291, 1508, 1885, 2582, 3016, 3770, 5164, 6455, 7540, 10328, 12910, 15080, 16783, 25820, 33566, 37439, 51640, 67132, 74878, 83915, 134264, 149756, 167830, 187195, 299512, 335660, 374390, 486707, 671320, 748780, 973414, 1497560, 1946828, 2433535, 3893656, 4867070, 9734140, 19468280]

約数ペア:

[(1, 19468280), (2, 9734140), (4, 4867070), (5, 3893656), (8, 2433535), (10, 1946828), (13, 1497560), (20, 973414), (26, 748780), (29, 671320), (40, 486707), (52, 374390), (58, 335660), (65, 299512), (104, 187195), (116, 167830), (130, 149756), (145, 134264), (232, 83915), (260, 74878), (290, 67132), (377, 51640), (520, 37439), (580, 33566), (754, 25820), (1160, 16783), (1291, 15080), (1508, 12910), (1885, 10328), (2582, 7540), (3016, 6455), (3770, 5164)]