28768740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:522

約数の個数: 192

約数和(自身を含む): 108380160

約数和(自身を除く): 79611420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 20, 21, 22, 26, 28, 30, 33, 35, 39, 42, 44, 52, 55, 60, 65, 66, 70, 77, 78, 84, 91, 105, 110, 130, 132, 140, 143, 154, 156, 165, 182, 195, 210, 220, 231, 260, 273, 286, 308, 330, 364, 385, 390, 420, 429, 455, 462, 479, 546, 572, 660, 715, 770, 780, 858, 910, 924, 958, 1001, 1092, 1155, 1365, 1430, 1437, 1540, 1716, 1820, 1916, 2002, 2145, 2310, 2395, 2730, 2860, 2874, 3003, 3353, 4004, 4290, 4620, 4790, 5005, 5269, 5460, 5748, 6006, 6227, 6706, 7185, 8580, 9580, 10010, 10059, 10538, 12012, 12454, 13412, 14370, 15015, 15807, 16765, 18681, 20020, 20118, 21076, 24908, 26345, 28740, 30030, 31135, 31614, 33530, 36883, 37362, 40236, 43589, 50295, 52690, 60060, 62270, 63228, 67060, 68497, 73766, 74724, 79035, 87178, 93405, 100590, 105380, 110649, 124540, 130767, 136994, 147532, 158070, 174356, 184415, 186810, 201180, 205491, 217945, 221298, 261534, 273988, 316140, 342485, 368830, 373620, 410982, 435890, 442596, 479479, 523068, 553245, 653835, 684970, 737660, 821964, 871780, 958958, 1027455, 1106490, 1307670, 1369940, 1438437, 1917916, 2054910, 2212980, 2397395, 2615340, 2876874, 4109820, 4794790, 5753748, 7192185, 9589580, 14384370, 28768740]

約数ペア:

[(1, 28768740), (2, 14384370), (3, 9589580), (4, 7192185), (5, 5753748), (6, 4794790), (7, 4109820), (10, 2876874), (11, 2615340), (12, 2397395), (13, 2212980), (14, 2054910), (15, 1917916), (20, 1438437), (21, 1369940), (22, 1307670), (26, 1106490), (28, 1027455), (30, 958958), (33, 871780), (35, 821964), (39, 737660), (42, 684970), (44, 653835), (52, 553245), (55, 523068), (60, 479479), (65, 442596), (66, 435890), (70, 410982), (77, 373620), (78, 368830), (84, 342485), (91, 316140), (105, 273988), (110, 261534), (130, 221298), (132, 217945), (140, 205491), (143, 201180), (154, 186810), (156, 184415), (165, 174356), (182, 158070), (195, 147532), (210, 136994), (220, 130767), (231, 124540), (260, 110649), (273, 105380), (286, 100590), (308, 93405), (330, 87178), (364, 79035), (385, 74724), (390, 73766), (420, 68497), (429, 67060), (455, 63228), (462, 62270), (479, 60060), (546, 52690), (572, 50295), (660, 43589), (715, 40236), (770, 37362), (780, 36883), (858, 33530), (910, 31614), (924, 31135), (958, 30030), (1001, 28740), (1092, 26345), (1155, 24908), (1365, 21076), (1430, 20118), (1437, 20020), (1540, 18681), (1716, 16765), (1820, 15807), (1916, 15015), (2002, 14370), (2145, 13412), (2310, 12454), (2395, 12012), (2730, 10538), (2860, 10059), (2874, 10010), (3003, 9580), (3353, 8580), (4004, 7185), (4290, 6706), (4620, 6227), (4790, 6006), (5005, 5748), (5269, 5460)]