216015280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3919}}^1$

素因数の和:3998

約数の個数: 80

約数和(自身を含む): 551214720

約数和(自身を除く): 335199440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 520, 530, 689, 848, 1040, 1060, 1378, 2120, 2756, 3445, 3919, 4240, 5512, 6890, 7838, 11024, 13780, 15676, 19595, 27560, 31352, 39190, 50947, 55120, 62704, 78380, 101894, 156760, 203788, 207707, 254735, 313520, 407576, 415414, 509470, 815152, 830828, 1018940, 1038535, 1661656, 2037880, 2077070, 2700191, 3323312, 4075760, 4154140, 5400382, 8308280, 10800764, 13500955, 16616560, 21601528, 27001910, 43203056, 54003820, 108007640, 216015280]

約数ペア:

[(1, 216015280), (2, 108007640), (4, 54003820), (5, 43203056), (8, 27001910), (10, 21601528), (13, 16616560), (16, 13500955), (20, 10800764), (26, 8308280), (40, 5400382), (52, 4154140), (53, 4075760), (65, 3323312), (80, 2700191), (104, 2077070), (106, 2037880), (130, 1661656), (208, 1038535), (212, 1018940), (260, 830828), (265, 815152), (424, 509470), (520, 415414), (530, 407576), (689, 313520), (848, 254735), (1040, 207707), (1060, 203788), (1378, 156760), (2120, 101894), (2756, 78380), (3445, 62704), (3919, 55120), (4240, 50947), (5512, 39190), (6890, 31352), (7838, 27560), (11024, 19595), (13780, 15676)]