198728460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{157721}}^1$

素因数の和:157743

約数の個数: 72

約数和(自身を含む): 688929696

約数和(自身を除く): 490201236

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 157721, 315442, 473163, 630884, 788605, 946326, 1104047, 1419489, 1577210, 1892652, 2208094, 2365815, 2838978, 3154420, 3312141, 4416188, 4731630, 5520235, 5677956, 6624282, 7097445, 9463260, 9936423, 11040470, 13248564, 14194890, 16560705, 19872846, 22080940, 28389780, 33121410, 39745692, 49682115, 66242820, 99364230, 198728460]

約数ペア:

[(1, 198728460), (2, 99364230), (3, 66242820), (4, 49682115), (5, 39745692), (6, 33121410), (7, 28389780), (9, 22080940), (10, 19872846), (12, 16560705), (14, 14194890), (15, 13248564), (18, 11040470), (20, 9936423), (21, 9463260), (28, 7097445), (30, 6624282), (35, 5677956), (36, 5520235), (42, 4731630), (45, 4416188), (60, 3312141), (63, 3154420), (70, 2838978), (84, 2365815), (90, 2208094), (105, 1892652), (126, 1577210), (140, 1419489), (180, 1104047), (210, 946326), (252, 788605), (315, 630884), (420, 473163), (630, 315442), (1260, 157721)]