18917760

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:248

約数の個数: 128

約数和(自身を含む): 61689600

約数和(自身を除く): 42771840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 59, 60, 64, 80, 96, 118, 120, 128, 160, 167, 177, 192, 236, 240, 295, 320, 334, 354, 384, 472, 480, 501, 590, 640, 668, 708, 835, 885, 944, 960, 1002, 1180, 1336, 1416, 1670, 1770, 1888, 1920, 2004, 2360, 2505, 2672, 2832, 3340, 3540, 3776, 4008, 4720, 5010, 5344, 5664, 6680, 7080, 7552, 8016, 9440, 9853, 10020, 10688, 11328, 13360, 14160, 16032, 18880, 19706, 20040, 21376, 22656, 26720, 28320, 29559, 32064, 37760, 39412, 40080, 49265, 53440, 56640, 59118, 64128, 78824, 80160, 98530, 106880, 113280, 118236, 147795, 157648, 160320, 197060, 236472, 295590, 315296, 320640, 394120, 472944, 591180, 630592, 788240, 945888, 1182360, 1261184, 1576480, 1891776, 2364720, 3152960, 3783552, 4729440, 6305920, 9458880, 18917760]

約数ペア:

[(1, 18917760), (2, 9458880), (3, 6305920), (4, 4729440), (5, 3783552), (6, 3152960), (8, 2364720), (10, 1891776), (12, 1576480), (15, 1261184), (16, 1182360), (20, 945888), (24, 788240), (30, 630592), (32, 591180), (40, 472944), (48, 394120), (59, 320640), (60, 315296), (64, 295590), (80, 236472), (96, 197060), (118, 160320), (120, 157648), (128, 147795), (160, 118236), (167, 113280), (177, 106880), (192, 98530), (236, 80160), (240, 78824), (295, 64128), (320, 59118), (334, 56640), (354, 53440), (384, 49265), (472, 40080), (480, 39412), (501, 37760), (590, 32064), (640, 29559), (668, 28320), (708, 26720), (835, 22656), (885, 21376), (944, 20040), (960, 19706), (1002, 18880), (1180, 16032), (1336, 14160), (1416, 13360), (1670, 11328), (1770, 10688), (1888, 10020), (1920, 9853), (2004, 9440), (2360, 8016), (2505, 7552), (2672, 7080), (2832, 6680), (3340, 5664), (3540, 5344), (3776, 5010), (4008, 4720)]