261327780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{29629}}^1$

素因数の和:29658

約数の個数: 108

約数和(自身を含む): 922144860

約数和(自身を除く): 660817080

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 29629, 59258, 88887, 118516, 148145, 177774, 207403, 266661, 296290, 355548, 414806, 444435, 533322, 592580, 622209, 829612, 888870, 1037015, 1066644, 1244418, 1333305, 1451821, 1777740, 1866627, 2074030, 2488836, 2666610, 2903642, 3111045, 3733254, 4148060, 4355463, 5333220, 5807284, 6222090, 7259105, 7466508, 8710926, 9333135, 12444180, 13066389, 14518210, 17421852, 18666270, 21777315, 26132778, 29036420, 37332540, 43554630, 52265556, 65331945, 87109260, 130663890, 261327780]

約数ペア:

[(1, 261327780), (2, 130663890), (3, 87109260), (4, 65331945), (5, 52265556), (6, 43554630), (7, 37332540), (9, 29036420), (10, 26132778), (12, 21777315), (14, 18666270), (15, 17421852), (18, 14518210), (20, 13066389), (21, 12444180), (28, 9333135), (30, 8710926), (35, 7466508), (36, 7259105), (42, 6222090), (45, 5807284), (49, 5333220), (60, 4355463), (63, 4148060), (70, 3733254), (84, 3111045), (90, 2903642), (98, 2666610), (105, 2488836), (126, 2074030), (140, 1866627), (147, 1777740), (180, 1451821), (196, 1333305), (210, 1244418), (245, 1066644), (252, 1037015), (294, 888870), (315, 829612), (420, 622209), (441, 592580), (490, 533322), (588, 444435), (630, 414806), (735, 355548), (882, 296290), (980, 266661), (1260, 207403), (1470, 177774), (1764, 148145), (2205, 118516), (2940, 88887), (4410, 59258), (8820, 29629)]