212254980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{505369}}^1$

素因数の和:505388

約数の個数: 48

約数和(自身を含む): 679217280

約数和(自身を除く): 466962300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 505369, 1010738, 1516107, 2021476, 2526845, 3032214, 3537583, 5053690, 6064428, 7075166, 7580535, 10107380, 10612749, 14150332, 15161070, 17687915, 21225498, 30322140, 35375830, 42450996, 53063745, 70751660, 106127490, 212254980]

約数ペア:

[(1, 212254980), (2, 106127490), (3, 70751660), (4, 53063745), (5, 42450996), (6, 35375830), (7, 30322140), (10, 21225498), (12, 17687915), (14, 15161070), (15, 14150332), (20, 10612749), (21, 10107380), (28, 7580535), (30, 7075166), (35, 6064428), (42, 5053690), (60, 3537583), (70, 3032214), (84, 2526845), (105, 2021476), (140, 1516107), (210, 1010738), (420, 505369)]