1668240

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{331}}^1$

素因数の和:357

約数の個数: 120

約数和(自身を含む): 6422208

約数和(自身を除く): 4753968

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 331, 336, 360, 420, 504, 560, 630, 662, 720, 840, 993, 1008, 1260, 1324, 1655, 1680, 1986, 2317, 2520, 2648, 2979, 3310, 3972, 4634, 4965, 5040, 5296, 5958, 6620, 6951, 7944, 9268, 9930, 11585, 11916, 13240, 13902, 14895, 15888, 18536, 19860, 20853, 23170, 23832, 26480, 27804, 29790, 34755, 37072, 39720, 41706, 46340, 47664, 55608, 59580, 69510, 79440, 83412, 92680, 104265, 111216, 119160, 139020, 166824, 185360, 208530, 238320, 278040, 333648, 417060, 556080, 834120, 1668240]

約数ペア:

[(1, 1668240), (2, 834120), (3, 556080), (4, 417060), (5, 333648), (6, 278040), (7, 238320), (8, 208530), (9, 185360), (10, 166824), (12, 139020), (14, 119160), (15, 111216), (16, 104265), (18, 92680), (20, 83412), (21, 79440), (24, 69510), (28, 59580), (30, 55608), (35, 47664), (36, 46340), (40, 41706), (42, 39720), (45, 37072), (48, 34755), (56, 29790), (60, 27804), (63, 26480), (70, 23832), (72, 23170), (80, 20853), (84, 19860), (90, 18536), (105, 15888), (112, 14895), (120, 13902), (126, 13240), (140, 11916), (144, 11585), (168, 9930), (180, 9268), (210, 7944), (240, 6951), (252, 6620), (280, 5958), (315, 5296), (331, 5040), (336, 4965), (360, 4634), (420, 3972), (504, 3310), (560, 2979), (630, 2648), (662, 2520), (720, 2317), (840, 1986), (993, 1680), (1008, 1655), (1260, 1324)]