28079520

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:223

約数の個数: 192

約数和(自身を含む): 103493376

約数和(自身を除く): 75413856

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 96, 105, 112, 120, 122, 137, 140, 160, 168, 183, 210, 224, 240, 244, 274, 280, 305, 336, 366, 411, 420, 427, 480, 488, 548, 560, 610, 672, 685, 732, 822, 840, 854, 915, 959, 976, 1096, 1120, 1220, 1281, 1370, 1464, 1644, 1680, 1708, 1830, 1918, 1952, 2055, 2135, 2192, 2440, 2562, 2740, 2877, 2928, 3288, 3360, 3416, 3660, 3836, 4110, 4270, 4384, 4795, 4880, 5124, 5480, 5754, 5856, 6405, 6576, 6832, 7320, 7672, 8220, 8357, 8540, 9590, 9760, 10248, 10960, 11508, 12810, 13152, 13664, 14385, 14640, 15344, 16440, 16714, 17080, 19180, 20496, 21920, 23016, 25071, 25620, 28770, 29280, 30688, 32880, 33428, 34160, 38360, 40992, 41785, 46032, 50142, 51240, 57540, 58499, 65760, 66856, 68320, 76720, 83570, 92064, 100284, 102480, 115080, 116998, 125355, 133712, 153440, 167140, 175497, 200568, 204960, 230160, 233996, 250710, 267424, 292495, 334280, 350994, 401136, 460320, 467992, 501420, 584990, 668560, 701988, 802272, 877485, 935984, 1002840, 1169980, 1337120, 1403976, 1754970, 1871968, 2005680, 2339960, 2807952, 3509940, 4011360, 4679920, 5615904, 7019880, 9359840, 14039760, 28079520]

約数ペア:

[(1, 28079520), (2, 14039760), (3, 9359840), (4, 7019880), (5, 5615904), (6, 4679920), (7, 4011360), (8, 3509940), (10, 2807952), (12, 2339960), (14, 2005680), (15, 1871968), (16, 1754970), (20, 1403976), (21, 1337120), (24, 1169980), (28, 1002840), (30, 935984), (32, 877485), (35, 802272), (40, 701988), (42, 668560), (48, 584990), (56, 501420), (60, 467992), (61, 460320), (70, 401136), (80, 350994), (84, 334280), (96, 292495), (105, 267424), (112, 250710), (120, 233996), (122, 230160), (137, 204960), (140, 200568), (160, 175497), (168, 167140), (183, 153440), (210, 133712), (224, 125355), (240, 116998), (244, 115080), (274, 102480), (280, 100284), (305, 92064), (336, 83570), (366, 76720), (411, 68320), (420, 66856), (427, 65760), (480, 58499), (488, 57540), (548, 51240), (560, 50142), (610, 46032), (672, 41785), (685, 40992), (732, 38360), (822, 34160), (840, 33428), (854, 32880), (915, 30688), (959, 29280), (976, 28770), (1096, 25620), (1120, 25071), (1220, 23016), (1281, 21920), (1370, 20496), (1464, 19180), (1644, 17080), (1680, 16714), (1708, 16440), (1830, 15344), (1918, 14640), (1952, 14385), (2055, 13664), (2135, 13152), (2192, 12810), (2440, 11508), (2562, 10960), (2740, 10248), (2877, 9760), (2928, 9590), (3288, 8540), (3360, 8357), (3416, 8220), (3660, 7672), (3836, 7320), (4110, 6832), (4270, 6576), (4384, 6405), (4795, 5856), (4880, 5754), (5124, 5480)]