861148540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{9059}}^1$

素因数の和:9179

約数の個数: 72

約数和(自身を含む): 2125584720

約数和(自身を除く): 1264436180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 97, 98, 140, 194, 196, 245, 388, 485, 490, 679, 970, 980, 1358, 1940, 2716, 3395, 4753, 6790, 9059, 9506, 13580, 18118, 19012, 23765, 36236, 45295, 47530, 63413, 90590, 95060, 126826, 181180, 253652, 317065, 443891, 634130, 878723, 887782, 1268260, 1757446, 1775564, 2219455, 3514892, 4393615, 4438910, 6151061, 8787230, 8877820, 12302122, 17574460, 24604244, 30755305, 43057427, 61510610, 86114854, 123021220, 172229708, 215287135, 430574270, 861148540]

約数ペア:

[(1, 861148540), (2, 430574270), (4, 215287135), (5, 172229708), (7, 123021220), (10, 86114854), (14, 61510610), (20, 43057427), (28, 30755305), (35, 24604244), (49, 17574460), (70, 12302122), (97, 8877820), (98, 8787230), (140, 6151061), (194, 4438910), (196, 4393615), (245, 3514892), (388, 2219455), (485, 1775564), (490, 1757446), (679, 1268260), (970, 887782), (980, 878723), (1358, 634130), (1940, 443891), (2716, 317065), (3395, 253652), (4753, 181180), (6790, 126826), (9059, 95060), (9506, 90590), (13580, 63413), (18118, 47530), (19012, 45295), (23765, 36236)]