28806960

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1319}}^1$

素因数の和:1355

約数の個数: 160

約数和(自身を含む): 109992960

約数和(自身を除く): 81186000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 364, 390, 420, 455, 520, 546, 560, 624, 728, 780, 840, 910, 1040, 1092, 1319, 1365, 1456, 1560, 1680, 1820, 2184, 2638, 2730, 3120, 3640, 3957, 4368, 5276, 5460, 6595, 7280, 7914, 9233, 10552, 10920, 13190, 15828, 17147, 18466, 19785, 21104, 21840, 26380, 27699, 31656, 34294, 36932, 39570, 46165, 51441, 52760, 55398, 63312, 68588, 73864, 79140, 85735, 92330, 102882, 105520, 110796, 120029, 137176, 138495, 147728, 158280, 171470, 184660, 205764, 221592, 240058, 257205, 274352, 276990, 316560, 342940, 360087, 369320, 411528, 443184, 480116, 514410, 553980, 600145, 685880, 720174, 738640, 823056, 960232, 1028820, 1107960, 1200290, 1371760, 1440348, 1800435, 1920464, 2057640, 2215920, 2400580, 2880696, 3600870, 4115280, 4801160, 5761392, 7201740, 9602320, 14403480, 28806960]

約数ペア:

[(1, 28806960), (2, 14403480), (3, 9602320), (4, 7201740), (5, 5761392), (6, 4801160), (7, 4115280), (8, 3600870), (10, 2880696), (12, 2400580), (13, 2215920), (14, 2057640), (15, 1920464), (16, 1800435), (20, 1440348), (21, 1371760), (24, 1200290), (26, 1107960), (28, 1028820), (30, 960232), (35, 823056), (39, 738640), (40, 720174), (42, 685880), (48, 600145), (52, 553980), (56, 514410), (60, 480116), (65, 443184), (70, 411528), (78, 369320), (80, 360087), (84, 342940), (91, 316560), (104, 276990), (105, 274352), (112, 257205), (120, 240058), (130, 221592), (140, 205764), (156, 184660), (168, 171470), (182, 158280), (195, 147728), (208, 138495), (210, 137176), (240, 120029), (260, 110796), (273, 105520), (280, 102882), (312, 92330), (336, 85735), (364, 79140), (390, 73864), (420, 68588), (455, 63312), (520, 55398), (546, 52760), (560, 51441), (624, 46165), (728, 39570), (780, 36932), (840, 34294), (910, 31656), (1040, 27699), (1092, 26380), (1319, 21840), (1365, 21104), (1456, 19785), (1560, 18466), (1680, 17147), (1820, 15828), (2184, 13190), (2638, 10920), (2730, 10552), (3120, 9233), (3640, 7914), (3957, 7280), (4368, 6595), (5276, 5460)]