19700820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12161}}^1$

素因数の和:12182

約数の個数: 60

約数和(自身を含む): 61807284

約数和(自身を除く): 42106464

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12161, 24322, 36483, 48644, 60805, 72966, 109449, 121610, 145932, 182415, 218898, 243220, 328347, 364830, 437796, 547245, 656694, 729660, 985041, 1094490, 1313388, 1641735, 1970082, 2188980, 3283470, 3940164, 4925205, 6566940, 9850410, 19700820]

約数ペア:

[(1, 19700820), (2, 9850410), (3, 6566940), (4, 4925205), (5, 3940164), (6, 3283470), (9, 2188980), (10, 1970082), (12, 1641735), (15, 1313388), (18, 1094490), (20, 985041), (27, 729660), (30, 656694), (36, 547245), (45, 437796), (54, 364830), (60, 328347), (81, 243220), (90, 218898), (108, 182415), (135, 145932), (162, 121610), (180, 109449), (270, 72966), (324, 60805), (405, 48644), (540, 36483), (810, 24322), (1620, 12161)]