85210020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{9661}}^1$

素因数の和:9690

約数の個数: 108

約数和(自身を含む): 300700764

約数和(自身を除く): 215490744

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, 9661, 19322, 28983, 38644, 48305, 57966, 67627, 86949, 96610, 115932, 135254, 144915, 173898, 193220, 202881, 270508, 289830, 338135, 347796, 405762, 434745, 473389, 579660, 608643, 676270, 811524, 869490, 946778, 1014405, 1217286, 1352540, 1420167, 1738980, 1893556, 2028810, 2366945, 2434572, 2840334, 3043215, 4057620, 4260501, 4733890, 5680668, 6086430, 7100835, 8521002, 9467780, 12172860, 14201670, 17042004, 21302505, 28403340, 42605010, 85210020]

約数ペア:

[(1, 85210020), (2, 42605010), (3, 28403340), (4, 21302505), (5, 17042004), (6, 14201670), (7, 12172860), (9, 9467780), (10, 8521002), (12, 7100835), (14, 6086430), (15, 5680668), (18, 4733890), (20, 4260501), (21, 4057620), (28, 3043215), (30, 2840334), (35, 2434572), (36, 2366945), (42, 2028810), (45, 1893556), (49, 1738980), (60, 1420167), (63, 1352540), (70, 1217286), (84, 1014405), (90, 946778), (98, 869490), (105, 811524), (126, 676270), (140, 608643), (147, 579660), (180, 473389), (196, 434745), (210, 405762), (245, 347796), (252, 338135), (294, 289830), (315, 270508), (420, 202881), (441, 193220), (490, 173898), (588, 144915), (630, 135254), (735, 115932), (882, 96610), (980, 86949), (1260, 67627), (1470, 57966), (1764, 48305), (2205, 38644), (2940, 28983), (4410, 19322), (8820, 9661)]