18793440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:473

約数の個数: 144

約数和(自身を含む): 66358656

約数和(自身を除く): 47565216

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 421, 465, 480, 496, 558, 620, 720, 744, 842, 930, 992, 1116, 1240, 1263, 1395, 1440, 1488, 1684, 1860, 2105, 2232, 2480, 2526, 2790, 2976, 3368, 3720, 3789, 4210, 4464, 4960, 5052, 5580, 6315, 6736, 7440, 7578, 8420, 8928, 10104, 11160, 12630, 13051, 13472, 14880, 15156, 16840, 18945, 20208, 22320, 25260, 26102, 30312, 33680, 37890, 39153, 40416, 44640, 50520, 52204, 60624, 65255, 67360, 75780, 78306, 101040, 104408, 117459, 121248, 130510, 151560, 156612, 195765, 202080, 208816, 234918, 261020, 303120, 313224, 391530, 417632, 469836, 522040, 587295, 606240, 626448, 783060, 939672, 1044080, 1174590, 1252896, 1566120, 1879344, 2088160, 2349180, 3132240, 3758688, 4698360, 6264480, 9396720, 18793440]

約数ペア:

[(1, 18793440), (2, 9396720), (3, 6264480), (4, 4698360), (5, 3758688), (6, 3132240), (8, 2349180), (9, 2088160), (10, 1879344), (12, 1566120), (15, 1252896), (16, 1174590), (18, 1044080), (20, 939672), (24, 783060), (30, 626448), (31, 606240), (32, 587295), (36, 522040), (40, 469836), (45, 417632), (48, 391530), (60, 313224), (62, 303120), (72, 261020), (80, 234918), (90, 208816), (93, 202080), (96, 195765), (120, 156612), (124, 151560), (144, 130510), (155, 121248), (160, 117459), (180, 104408), (186, 101040), (240, 78306), (248, 75780), (279, 67360), (288, 65255), (310, 60624), (360, 52204), (372, 50520), (421, 44640), (465, 40416), (480, 39153), (496, 37890), (558, 33680), (620, 30312), (720, 26102), (744, 25260), (842, 22320), (930, 20208), (992, 18945), (1116, 16840), (1240, 15156), (1263, 14880), (1395, 13472), (1440, 13051), (1488, 12630), (1684, 11160), (1860, 10104), (2105, 8928), (2232, 8420), (2480, 7578), (2526, 7440), (2790, 6736), (2976, 6315), (3368, 5580), (3720, 5052), (3789, 4960), (4210, 4464)]