19893280

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:242

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 32361440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 89, 110, 127, 160, 176, 178, 220, 254, 352, 356, 440, 445, 508, 635, 712, 880, 890, 979, 1016, 1270, 1397, 1424, 1760, 1780, 1958, 2032, 2540, 2794, 2848, 3560, 3916, 4064, 4895, 5080, 5588, 6985, 7120, 7832, 9790, 10160, 11176, 11303, 13970, 14240, 15664, 19580, 20320, 22352, 22606, 27940, 31328, 39160, 44704, 45212, 55880, 56515, 78320, 90424, 111760, 113030, 124333, 156640, 180848, 223520, 226060, 248666, 361696, 452120, 497332, 621665, 904240, 994664, 1243330, 1808480, 1989328, 2486660, 3978656, 4973320, 9946640, 19893280]

約数ペア:

[(1, 19893280), (2, 9946640), (4, 4973320), (5, 3978656), (8, 2486660), (10, 1989328), (11, 1808480), (16, 1243330), (20, 994664), (22, 904240), (32, 621665), (40, 497332), (44, 452120), (55, 361696), (80, 248666), (88, 226060), (89, 223520), (110, 180848), (127, 156640), (160, 124333), (176, 113030), (178, 111760), (220, 90424), (254, 78320), (352, 56515), (356, 55880), (440, 45212), (445, 44704), (508, 39160), (635, 31328), (712, 27940), (880, 22606), (890, 22352), (979, 20320), (1016, 19580), (1270, 15664), (1397, 14240), (1424, 13970), (1760, 11303), (1780, 11176), (1958, 10160), (2032, 9790), (2540, 7832), (2794, 7120), (2848, 6985), (3560, 5588), (3916, 5080), (4064, 4895)]