18764060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{467}}^1$

素因数の和:531

約数の個数: 72

約数和(自身を含む): 47056464

約数和(自身を除く): 28292404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 467, 490, 574, 820, 934, 980, 1148, 1435, 1868, 2009, 2335, 2870, 3269, 4018, 4670, 5740, 6538, 8036, 9340, 10045, 13076, 16345, 19147, 20090, 22883, 32690, 38294, 40180, 45766, 65380, 76588, 91532, 95735, 114415, 134029, 191470, 228830, 268058, 382940, 457660, 536116, 670145, 938203, 1340290, 1876406, 2680580, 3752812, 4691015, 9382030, 18764060]

約数ペア:

[(1, 18764060), (2, 9382030), (4, 4691015), (5, 3752812), (7, 2680580), (10, 1876406), (14, 1340290), (20, 938203), (28, 670145), (35, 536116), (41, 457660), (49, 382940), (70, 268058), (82, 228830), (98, 191470), (140, 134029), (164, 114415), (196, 95735), (205, 91532), (245, 76588), (287, 65380), (410, 45766), (467, 40180), (490, 38294), (574, 32690), (820, 22883), (934, 20090), (980, 19147), (1148, 16345), (1435, 13076), (1868, 10045), (2009, 9340), (2335, 8036), (2870, 6538), (3269, 5740), (4018, 4670)]