28537080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1663}}^1$

素因数の和:1701

約数の個数: 128

約数和(自身を含む): 100638720

約数和(自身を除く): 72101640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 33, 39, 40, 44, 52, 55, 60, 65, 66, 78, 88, 104, 110, 120, 130, 132, 143, 156, 165, 195, 220, 260, 264, 286, 312, 330, 390, 429, 440, 520, 572, 660, 715, 780, 858, 1144, 1320, 1430, 1560, 1663, 1716, 2145, 2860, 3326, 3432, 4290, 4989, 5720, 6652, 8315, 8580, 9978, 13304, 16630, 17160, 18293, 19956, 21619, 24945, 33260, 36586, 39912, 43238, 49890, 54879, 64857, 66520, 73172, 86476, 91465, 99780, 108095, 109758, 129714, 146344, 172952, 182930, 199560, 216190, 219516, 237809, 259428, 274395, 324285, 365860, 432380, 439032, 475618, 518856, 548790, 648570, 713427, 731720, 864760, 951236, 1097580, 1189045, 1297140, 1426854, 1902472, 2195160, 2378090, 2594280, 2853708, 3567135, 4756180, 5707416, 7134270, 9512360, 14268540, 28537080]

約数ペア:

[(1, 28537080), (2, 14268540), (3, 9512360), (4, 7134270), (5, 5707416), (6, 4756180), (8, 3567135), (10, 2853708), (11, 2594280), (12, 2378090), (13, 2195160), (15, 1902472), (20, 1426854), (22, 1297140), (24, 1189045), (26, 1097580), (30, 951236), (33, 864760), (39, 731720), (40, 713427), (44, 648570), (52, 548790), (55, 518856), (60, 475618), (65, 439032), (66, 432380), (78, 365860), (88, 324285), (104, 274395), (110, 259428), (120, 237809), (130, 219516), (132, 216190), (143, 199560), (156, 182930), (165, 172952), (195, 146344), (220, 129714), (260, 109758), (264, 108095), (286, 99780), (312, 91465), (330, 86476), (390, 73172), (429, 66520), (440, 64857), (520, 54879), (572, 49890), (660, 43238), (715, 39912), (780, 36586), (858, 33260), (1144, 24945), (1320, 21619), (1430, 19956), (1560, 18293), (1663, 17160), (1716, 16630), (2145, 13304), (2860, 9978), (3326, 8580), (3432, 8315), (4290, 6652), (4989, 5720)]