28579680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:333

約数の個数: 144

約数和(自身を含む): 99066240

約数和(自身を除く): 70486560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 89, 90, 96, 120, 144, 160, 178, 180, 223, 240, 267, 288, 356, 360, 445, 446, 480, 534, 669, 712, 720, 801, 890, 892, 1068, 1115, 1335, 1338, 1424, 1440, 1602, 1780, 1784, 2007, 2136, 2230, 2670, 2676, 2848, 3204, 3345, 3560, 3568, 4005, 4014, 4272, 4460, 5340, 5352, 6408, 6690, 7120, 7136, 8010, 8028, 8544, 8920, 10035, 10680, 10704, 12816, 13380, 14240, 16020, 16056, 17840, 19847, 20070, 21360, 21408, 25632, 26760, 32040, 32112, 35680, 39694, 40140, 42720, 53520, 59541, 64080, 64224, 79388, 80280, 99235, 107040, 119082, 128160, 158776, 160560, 178623, 198470, 238164, 297705, 317552, 321120, 357246, 396940, 476328, 595410, 635104, 714492, 793880, 893115, 952656, 1190820, 1428984, 1587760, 1786230, 1905312, 2381640, 2857968, 3175520, 3572460, 4763280, 5715936, 7144920, 9526560, 14289840, 28579680]

約数ペア:

[(1, 28579680), (2, 14289840), (3, 9526560), (4, 7144920), (5, 5715936), (6, 4763280), (8, 3572460), (9, 3175520), (10, 2857968), (12, 2381640), (15, 1905312), (16, 1786230), (18, 1587760), (20, 1428984), (24, 1190820), (30, 952656), (32, 893115), (36, 793880), (40, 714492), (45, 635104), (48, 595410), (60, 476328), (72, 396940), (80, 357246), (89, 321120), (90, 317552), (96, 297705), (120, 238164), (144, 198470), (160, 178623), (178, 160560), (180, 158776), (223, 128160), (240, 119082), (267, 107040), (288, 99235), (356, 80280), (360, 79388), (445, 64224), (446, 64080), (480, 59541), (534, 53520), (669, 42720), (712, 40140), (720, 39694), (801, 35680), (890, 32112), (892, 32040), (1068, 26760), (1115, 25632), (1335, 21408), (1338, 21360), (1424, 20070), (1440, 19847), (1602, 17840), (1780, 16056), (1784, 16020), (2007, 14240), (2136, 13380), (2230, 12816), (2670, 10704), (2676, 10680), (2848, 10035), (3204, 8920), (3345, 8544), (3560, 8028), (3568, 8010), (4005, 7136), (4014, 7120), (4272, 6690), (4460, 6408), (5340, 5352)]