81329220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{9221}}^1$

素因数の和:9250

約数の個数: 108

約数和(自身を含む): 287007084

約数和(自身を除く): 205677864

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, 9221, 18442, 27663, 36884, 46105, 55326, 64547, 82989, 92210, 110652, 129094, 138315, 165978, 184420, 193641, 258188, 276630, 322735, 331956, 387282, 414945, 451829, 553260, 580923, 645470, 774564, 829890, 903658, 968205, 1161846, 1290940, 1355487, 1659780, 1807316, 1936410, 2259145, 2323692, 2710974, 2904615, 3872820, 4066461, 4518290, 5421948, 5809230, 6777435, 8132922, 9036580, 11618460, 13554870, 16265844, 20332305, 27109740, 40664610, 81329220]

約数ペア:

[(1, 81329220), (2, 40664610), (3, 27109740), (4, 20332305), (5, 16265844), (6, 13554870), (7, 11618460), (9, 9036580), (10, 8132922), (12, 6777435), (14, 5809230), (15, 5421948), (18, 4518290), (20, 4066461), (21, 3872820), (28, 2904615), (30, 2710974), (35, 2323692), (36, 2259145), (42, 1936410), (45, 1807316), (49, 1659780), (60, 1355487), (63, 1290940), (70, 1161846), (84, 968205), (90, 903658), (98, 829890), (105, 774564), (126, 645470), (140, 580923), (147, 553260), (180, 451829), (196, 414945), (210, 387282), (245, 331956), (252, 322735), (294, 276630), (315, 258188), (420, 193641), (441, 184420), (490, 165978), (588, 138315), (630, 129094), (735, 110652), (882, 92210), (980, 82989), (1260, 64547), (1470, 55326), (1764, 46105), (2205, 36884), (2940, 27663), (4410, 18442), (8820, 9221)]