198919140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{473617}}^1$

素因数の和:473636

約数の個数: 48

約数和(自身を含む): 636542592

約数和(自身を除く): 437623452

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, 473617, 947234, 1420851, 1894468, 2368085, 2841702, 3315319, 4736170, 5683404, 6630638, 7104255, 9472340, 9945957, 13261276, 14208510, 16576595, 19891914, 28417020, 33153190, 39783828, 49729785, 66306380, 99459570, 198919140]

約数ペア:

[(1, 198919140), (2, 99459570), (3, 66306380), (4, 49729785), (5, 39783828), (6, 33153190), (7, 28417020), (10, 19891914), (12, 16576595), (14, 14208510), (15, 13261276), (20, 9945957), (21, 9472340), (28, 7104255), (30, 6630638), (35, 5683404), (42, 4736170), (60, 3315319), (70, 2841702), (84, 2368085), (105, 1894468), (140, 1420851), (210, 947234), (420, 473617)]