399404520

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{13697}}^1$

素因数の和:13726

約数の個数: 112

約数和(自身を含む): 1347472260

約数和(自身を除く): 948067740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 729, 810, 972, 1080, 1215, 1458, 1620, 1944, 2430, 2916, 3240, 3645, 4860, 5832, 7290, 9720, 13697, 14580, 27394, 29160, 41091, 54788, 68485, 82182, 109576, 123273, 136970, 164364, 205455, 246546, 273940, 328728, 369819, 410910, 493092, 547880, 616365, 739638, 821820, 986184, 1109457, 1232730, 1479276, 1643640, 1849095, 2218914, 2465460, 2958552, 3328371, 3698190, 4437828, 4930920, 5547285, 6656742, 7396380, 8875656, 9985113, 11094570, 13313484, 14792760, 16641855, 19970226, 22189140, 26626968, 33283710, 39940452, 44378280, 49925565, 66567420, 79880904, 99851130, 133134840, 199702260, 399404520]

約数ペア:

[(1, 399404520), (2, 199702260), (3, 133134840), (4, 99851130), (5, 79880904), (6, 66567420), (8, 49925565), (9, 44378280), (10, 39940452), (12, 33283710), (15, 26626968), (18, 22189140), (20, 19970226), (24, 16641855), (27, 14792760), (30, 13313484), (36, 11094570), (40, 9985113), (45, 8875656), (54, 7396380), (60, 6656742), (72, 5547285), (81, 4930920), (90, 4437828), (108, 3698190), (120, 3328371), (135, 2958552), (162, 2465460), (180, 2218914), (216, 1849095), (243, 1643640), (270, 1479276), (324, 1232730), (360, 1109457), (405, 986184), (486, 821820), (540, 739638), (648, 616365), (729, 547880), (810, 493092), (972, 410910), (1080, 369819), (1215, 328728), (1458, 273940), (1620, 246546), (1944, 205455), (2430, 164364), (2916, 136970), (3240, 123273), (3645, 109576), (4860, 82182), (5832, 68485), (7290, 54788), (9720, 41091), (13697, 29160), (14580, 27394)]