28338120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1381}}^1$

素因数の和:1420

約数の個数: 128

約数和(自身を含む): 99504000

約数和(自身を除く): 71165880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1381, 1710, 2052, 2280, 2565, 2762, 3420, 4104, 4143, 5130, 5524, 6840, 6905, 8286, 10260, 11048, 12429, 13810, 16572, 20520, 20715, 24858, 26239, 27620, 33144, 37287, 41430, 49716, 52478, 55240, 62145, 74574, 78717, 82860, 99432, 104956, 124290, 131195, 149148, 157434, 165720, 186435, 209912, 236151, 248580, 262390, 298296, 314868, 372870, 393585, 472302, 497160, 524780, 629736, 708453, 745740, 787170, 944604, 1049560, 1180755, 1416906, 1491480, 1574340, 1889208, 2361510, 2833812, 3148680, 3542265, 4723020, 5667624, 7084530, 9446040, 14169060, 28338120]

約数ペア:

[(1, 28338120), (2, 14169060), (3, 9446040), (4, 7084530), (5, 5667624), (6, 4723020), (8, 3542265), (9, 3148680), (10, 2833812), (12, 2361510), (15, 1889208), (18, 1574340), (19, 1491480), (20, 1416906), (24, 1180755), (27, 1049560), (30, 944604), (36, 787170), (38, 745740), (40, 708453), (45, 629736), (54, 524780), (57, 497160), (60, 472302), (72, 393585), (76, 372870), (90, 314868), (95, 298296), (108, 262390), (114, 248580), (120, 236151), (135, 209912), (152, 186435), (171, 165720), (180, 157434), (190, 149148), (216, 131195), (228, 124290), (270, 104956), (285, 99432), (342, 82860), (360, 78717), (380, 74574), (456, 62145), (513, 55240), (540, 52478), (570, 49716), (684, 41430), (760, 37287), (855, 33144), (1026, 27620), (1080, 26239), (1140, 24858), (1368, 20715), (1381, 20520), (1710, 16572), (2052, 13810), (2280, 12429), (2565, 11048), (2762, 10260), (3420, 8286), (4104, 6905), (4143, 6840), (5130, 5524)]