256397723715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{479}}^1\times {\mathrm{12841}}^1$

素因数の和:13732

約数の個数: 64

約数和(自身を含む): 471040450560

約数和(自身を除く): 214642726845

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 397, 479, 1191, 1437, 1985, 2395, 2779, 3353, 5955, 7185, 8337, 10059, 12841, 13895, 16765, 38523, 41685, 50295, 64205, 89887, 190163, 192615, 269661, 449435, 570489, 950815, 1331141, 1348305, 2852445, 3993423, 5097877, 6150839, 6655705, 15293631, 18452517, 19967115, 25489385, 30754195, 35685139, 43055873, 76468155, 92262585, 107055417, 129167619, 178425695, 215279365, 535277085, 645838095, 2441883083, 7325649249, 12209415415, 17093181581, 36628246245, 51279544743, 85465907905, 256397723715]

約数ペア:

[(1, 256397723715), (3, 85465907905), (5, 51279544743), (7, 36628246245), (15, 17093181581), (21, 12209415415), (35, 7325649249), (105, 2441883083), (397, 645838095), (479, 535277085), (1191, 215279365), (1437, 178425695), (1985, 129167619), (2395, 107055417), (2779, 92262585), (3353, 76468155), (5955, 43055873), (7185, 35685139), (8337, 30754195), (10059, 25489385), (12841, 19967115), (13895, 18452517), (16765, 15293631), (38523, 6655705), (41685, 6150839), (50295, 5097877), (64205, 3993423), (89887, 2852445), (190163, 1348305), (192615, 1331141), (269661, 950815), (449435, 570489)]