1687140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 6359808

約数和(自身を除く): 4672668

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 103, 105, 117, 126, 130, 140, 156, 180, 182, 195, 206, 210, 234, 252, 260, 273, 309, 315, 364, 390, 412, 420, 455, 468, 515, 546, 585, 618, 630, 721, 780, 819, 910, 927, 1030, 1092, 1170, 1236, 1260, 1339, 1365, 1442, 1545, 1638, 1820, 1854, 2060, 2163, 2340, 2678, 2730, 2884, 3090, 3276, 3605, 3708, 4017, 4095, 4326, 4635, 5356, 5460, 6180, 6489, 6695, 7210, 8034, 8190, 8652, 9270, 9373, 10815, 12051, 12978, 13390, 14420, 16068, 16380, 18540, 18746, 20085, 21630, 24102, 25956, 26780, 28119, 32445, 37492, 40170, 43260, 46865, 48204, 56238, 60255, 64890, 80340, 84357, 93730, 112476, 120510, 129780, 140595, 168714, 187460, 241020, 281190, 337428, 421785, 562380, 843570, 1687140]

約数ペア:

[(1, 1687140), (2, 843570), (3, 562380), (4, 421785), (5, 337428), (6, 281190), (7, 241020), (9, 187460), (10, 168714), (12, 140595), (13, 129780), (14, 120510), (15, 112476), (18, 93730), (20, 84357), (21, 80340), (26, 64890), (28, 60255), (30, 56238), (35, 48204), (36, 46865), (39, 43260), (42, 40170), (45, 37492), (52, 32445), (60, 28119), (63, 26780), (65, 25956), (70, 24102), (78, 21630), (84, 20085), (90, 18746), (91, 18540), (103, 16380), (105, 16068), (117, 14420), (126, 13390), (130, 12978), (140, 12051), (156, 10815), (180, 9373), (182, 9270), (195, 8652), (206, 8190), (210, 8034), (234, 7210), (252, 6695), (260, 6489), (273, 6180), (309, 5460), (315, 5356), (364, 4635), (390, 4326), (412, 4095), (420, 4017), (455, 3708), (468, 3605), (515, 3276), (546, 3090), (585, 2884), (618, 2730), (630, 2678), (721, 2340), (780, 2163), (819, 2060), (910, 1854), (927, 1820), (1030, 1638), (1092, 1545), (1170, 1442), (1236, 1365), (1260, 1339)]