18663960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1307}}^1$

素因数の和:1345

約数の個数: 128

約数和(自身を含む): 67806720

約数和(自身を除く): 49142760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1307, 1428, 1785, 2040, 2380, 2614, 2856, 3570, 3921, 4760, 5228, 6535, 7140, 7842, 9149, 10456, 13070, 14280, 15684, 18298, 19605, 22219, 26140, 27447, 31368, 36596, 39210, 44438, 45745, 52280, 54894, 66657, 73192, 78420, 88876, 91490, 109788, 111095, 133314, 137235, 155533, 156840, 177752, 182980, 219576, 222190, 266628, 274470, 311066, 333285, 365960, 444380, 466599, 533256, 548940, 622132, 666570, 777665, 888760, 933198, 1097880, 1244264, 1333140, 1555330, 1866396, 2332995, 2666280, 3110660, 3732792, 4665990, 6221320, 9331980, 18663960]

約数ペア:

[(1, 18663960), (2, 9331980), (3, 6221320), (4, 4665990), (5, 3732792), (6, 3110660), (7, 2666280), (8, 2332995), (10, 1866396), (12, 1555330), (14, 1333140), (15, 1244264), (17, 1097880), (20, 933198), (21, 888760), (24, 777665), (28, 666570), (30, 622132), (34, 548940), (35, 533256), (40, 466599), (42, 444380), (51, 365960), (56, 333285), (60, 311066), (68, 274470), (70, 266628), (84, 222190), (85, 219576), (102, 182980), (105, 177752), (119, 156840), (120, 155533), (136, 137235), (140, 133314), (168, 111095), (170, 109788), (204, 91490), (210, 88876), (238, 78420), (255, 73192), (280, 66657), (340, 54894), (357, 52280), (408, 45745), (420, 44438), (476, 39210), (510, 36596), (595, 31368), (680, 27447), (714, 26140), (840, 22219), (952, 19605), (1020, 18298), (1190, 15684), (1307, 14280), (1428, 13070), (1785, 10456), (2040, 9149), (2380, 7842), (2614, 7140), (2856, 6535), (3570, 5228), (3921, 4760)]