28403340

素因数分解:

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

素因数の和:9687

約数の個数: 72

約数和(自身を含む): 92523312

約数和(自身を除く): 64119972

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 9661, 19322, 28983, 38644, 48305, 57966, 67627, 96610, 115932, 135254, 144915, 193220, 202881, 270508, 289830, 338135, 405762, 473389, 579660, 676270, 811524, 946778, 1014405, 1352540, 1420167, 1893556, 2028810, 2366945, 2840334, 4057620, 4733890, 5680668, 7100835, 9467780, 14201670, 28403340]

約数ペア:

[(1, 28403340), (2, 14201670), (3, 9467780), (4, 7100835), (5, 5680668), (6, 4733890), (7, 4057620), (10, 2840334), (12, 2366945), (14, 2028810), (15, 1893556), (20, 1420167), (21, 1352540), (28, 1014405), (30, 946778), (35, 811524), (42, 676270), (49, 579660), (60, 473389), (70, 405762), (84, 338135), (98, 289830), (105, 270508), (140, 202881), (147, 193220), (196, 144915), (210, 135254), (245, 115932), (294, 96610), (420, 67627), (490, 57966), (588, 48305), (735, 38644), (980, 28983), (1470, 19322), (2940, 9661)]