18738240

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:300

約数の個数: 112

約数和(自身を含む): 60350400

約数和(自身を除く): 41612160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 131, 149, 160, 192, 240, 262, 298, 320, 393, 447, 480, 524, 596, 655, 745, 786, 894, 960, 1048, 1192, 1310, 1490, 1572, 1788, 1965, 2096, 2235, 2384, 2620, 2980, 3144, 3576, 3930, 4192, 4470, 4768, 5240, 5960, 6288, 7152, 7860, 8384, 8940, 9536, 10480, 11920, 12576, 14304, 15720, 17880, 19519, 20960, 23840, 25152, 28608, 31440, 35760, 39038, 41920, 47680, 58557, 62880, 71520, 78076, 97595, 117114, 125760, 143040, 156152, 195190, 234228, 292785, 312304, 390380, 468456, 585570, 624608, 780760, 936912, 1171140, 1249216, 1561520, 1873824, 2342280, 3123040, 3747648, 4684560, 6246080, 9369120, 18738240]

約数ペア:

[(1, 18738240), (2, 9369120), (3, 6246080), (4, 4684560), (5, 3747648), (6, 3123040), (8, 2342280), (10, 1873824), (12, 1561520), (15, 1249216), (16, 1171140), (20, 936912), (24, 780760), (30, 624608), (32, 585570), (40, 468456), (48, 390380), (60, 312304), (64, 292785), (80, 234228), (96, 195190), (120, 156152), (131, 143040), (149, 125760), (160, 117114), (192, 97595), (240, 78076), (262, 71520), (298, 62880), (320, 58557), (393, 47680), (447, 41920), (480, 39038), (524, 35760), (596, 31440), (655, 28608), (745, 25152), (786, 23840), (894, 20960), (960, 19519), (1048, 17880), (1192, 15720), (1310, 14304), (1490, 12576), (1572, 11920), (1788, 10480), (1965, 9536), (2096, 8940), (2235, 8384), (2384, 7860), (2620, 7152), (2980, 6288), (3144, 5960), (3576, 5240), (3930, 4768), (4192, 4470)]