18937440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13151}}^1$

素因数の和:13172

約数の個数: 72

約数和(自身を含む): 64628928

約数和(自身を除く): 45691488

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 13151, 26302, 39453, 52604, 65755, 78906, 105208, 118359, 131510, 157812, 197265, 210416, 236718, 263020, 315624, 394530, 420832, 473436, 526040, 591795, 631248, 789060, 946872, 1052080, 1183590, 1262496, 1578120, 1893744, 2104160, 2367180, 3156240, 3787488, 4734360, 6312480, 9468720, 18937440]

約数ペア:

[(1, 18937440), (2, 9468720), (3, 6312480), (4, 4734360), (5, 3787488), (6, 3156240), (8, 2367180), (9, 2104160), (10, 1893744), (12, 1578120), (15, 1262496), (16, 1183590), (18, 1052080), (20, 946872), (24, 789060), (30, 631248), (32, 591795), (36, 526040), (40, 473436), (45, 420832), (48, 394530), (60, 315624), (72, 263020), (80, 236718), (90, 210416), (96, 197265), (120, 157812), (144, 131510), (160, 118359), (180, 105208), (240, 78906), (288, 65755), (360, 52604), (480, 39453), (720, 26302), (1440, 13151)]