1809990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:63

約数の個数: 144

約数和(自身を含む): 6166368

約数和(自身を除く): 4356378

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 17, 18, 21, 26, 30, 34, 35, 39, 42, 45, 51, 63, 65, 70, 78, 85, 90, 91, 102, 105, 117, 119, 126, 130, 153, 169, 170, 182, 195, 210, 221, 234, 238, 255, 273, 306, 315, 338, 357, 390, 442, 455, 507, 510, 546, 585, 595, 630, 663, 714, 765, 819, 845, 910, 1014, 1071, 1105, 1170, 1183, 1190, 1326, 1365, 1521, 1530, 1547, 1638, 1690, 1785, 1989, 2142, 2210, 2366, 2535, 2730, 2873, 3042, 3094, 3315, 3549, 3570, 3978, 4095, 4641, 5070, 5355, 5746, 5915, 6630, 7098, 7605, 7735, 8190, 8619, 9282, 9945, 10647, 10710, 11830, 13923, 14365, 15210, 15470, 17238, 17745, 19890, 20111, 21294, 23205, 25857, 27846, 28730, 35490, 40222, 43095, 46410, 51714, 53235, 60333, 69615, 86190, 100555, 106470, 120666, 129285, 139230, 180999, 201110, 258570, 301665, 361998, 603330, 904995, 1809990]

約数ペア:

[(1, 1809990), (2, 904995), (3, 603330), (5, 361998), (6, 301665), (7, 258570), (9, 201110), (10, 180999), (13, 139230), (14, 129285), (15, 120666), (17, 106470), (18, 100555), (21, 86190), (26, 69615), (30, 60333), (34, 53235), (35, 51714), (39, 46410), (42, 43095), (45, 40222), (51, 35490), (63, 28730), (65, 27846), (70, 25857), (78, 23205), (85, 21294), (90, 20111), (91, 19890), (102, 17745), (105, 17238), (117, 15470), (119, 15210), (126, 14365), (130, 13923), (153, 11830), (169, 10710), (170, 10647), (182, 9945), (195, 9282), (210, 8619), (221, 8190), (234, 7735), (238, 7605), (255, 7098), (273, 6630), (306, 5915), (315, 5746), (338, 5355), (357, 5070), (390, 4641), (442, 4095), (455, 3978), (507, 3570), (510, 3549), (546, 3315), (585, 3094), (595, 3042), (630, 2873), (663, 2730), (714, 2535), (765, 2366), (819, 2210), (845, 2142), (910, 1989), (1014, 1785), (1071, 1690), (1105, 1638), (1170, 1547), (1183, 1530), (1190, 1521), (1326, 1365)]