18948480

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:232

約数の個数: 128

約数和(自身を含む): 61689600

約数和(自身を除く): 42741120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 71, 80, 96, 120, 128, 139, 142, 160, 192, 213, 240, 278, 284, 320, 355, 384, 417, 426, 480, 556, 568, 640, 695, 710, 834, 852, 960, 1065, 1112, 1136, 1390, 1420, 1668, 1704, 1920, 2085, 2130, 2224, 2272, 2780, 2840, 3336, 3408, 4170, 4260, 4448, 4544, 5560, 5680, 6672, 6816, 8340, 8520, 8896, 9088, 9869, 11120, 11360, 13344, 13632, 16680, 17040, 17792, 19738, 22240, 22720, 26688, 27264, 29607, 33360, 34080, 39476, 44480, 45440, 49345, 53376, 59214, 66720, 68160, 78952, 88960, 98690, 118428, 133440, 136320, 148035, 157904, 197380, 236856, 266880, 296070, 315808, 394760, 473712, 592140, 631616, 789520, 947424, 1184280, 1263232, 1579040, 1894848, 2368560, 3158080, 3789696, 4737120, 6316160, 9474240, 18948480]

約数ペア:

[(1, 18948480), (2, 9474240), (3, 6316160), (4, 4737120), (5, 3789696), (6, 3158080), (8, 2368560), (10, 1894848), (12, 1579040), (15, 1263232), (16, 1184280), (20, 947424), (24, 789520), (30, 631616), (32, 592140), (40, 473712), (48, 394760), (60, 315808), (64, 296070), (71, 266880), (80, 236856), (96, 197380), (120, 157904), (128, 148035), (139, 136320), (142, 133440), (160, 118428), (192, 98690), (213, 88960), (240, 78952), (278, 68160), (284, 66720), (320, 59214), (355, 53376), (384, 49345), (417, 45440), (426, 44480), (480, 39476), (556, 34080), (568, 33360), (640, 29607), (695, 27264), (710, 26688), (834, 22720), (852, 22240), (960, 19738), (1065, 17792), (1112, 17040), (1136, 16680), (1390, 13632), (1420, 13344), (1668, 11360), (1704, 11120), (1920, 9869), (2085, 9088), (2130, 8896), (2224, 8520), (2272, 8340), (2780, 6816), (2840, 6672), (3336, 5680), (3408, 5560), (4170, 4544), (4260, 4448)]