28530320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3919}}^1$

素因数の和:3952

約数の個数: 80

約数和(自身を含む): 81661440

約数和(自身を除く): 53131120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 3919, 7280, 7838, 15676, 19595, 27433, 31352, 39190, 50947, 54866, 62704, 78380, 101894, 109732, 137165, 156760, 203788, 219464, 254735, 274330, 313520, 356629, 407576, 438928, 509470, 548660, 713258, 815152, 1018940, 1097320, 1426516, 1783145, 2037880, 2194640, 2853032, 3566290, 4075760, 5706064, 7132580, 14265160, 28530320]

約数ペア:

[(1, 28530320), (2, 14265160), (4, 7132580), (5, 5706064), (7, 4075760), (8, 3566290), (10, 2853032), (13, 2194640), (14, 2037880), (16, 1783145), (20, 1426516), (26, 1097320), (28, 1018940), (35, 815152), (40, 713258), (52, 548660), (56, 509470), (65, 438928), (70, 407576), (80, 356629), (91, 313520), (104, 274330), (112, 254735), (130, 219464), (140, 203788), (182, 156760), (208, 137165), (260, 109732), (280, 101894), (364, 78380), (455, 62704), (520, 54866), (560, 50947), (728, 39190), (910, 31352), (1040, 27433), (1456, 19595), (1820, 15676), (3640, 7838), (3919, 7280)]