405909140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:398

約数の個数: 144

約数和(自身を含む): 1080019584

約数和(自身を除く): 674110444

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 151, 182, 196, 211, 245, 260, 302, 364, 422, 455, 490, 604, 637, 755, 844, 910, 980, 1055, 1057, 1274, 1477, 1510, 1820, 1963, 2110, 2114, 2548, 2743, 2954, 3020, 3185, 3926, 4220, 4228, 5285, 5486, 5908, 6370, 7385, 7399, 7852, 9815, 10339, 10570, 10972, 12740, 13715, 13741, 14770, 14798, 19201, 19630, 20678, 21140, 27430, 27482, 29540, 29596, 31861, 36995, 38402, 39260, 41356, 51695, 54860, 54964, 63722, 68705, 73990, 76804, 96005, 96187, 103390, 127444, 134407, 137410, 147980, 159305, 192010, 192374, 206780, 223027, 268814, 274820, 318610, 384020, 384748, 414193, 446054, 480935, 537628, 637220, 672035, 828386, 892108, 961870, 1115135, 1344070, 1561189, 1656772, 1923740, 2070965, 2230270, 2688140, 2899351, 3122378, 4141930, 4460540, 5798702, 6244756, 7805945, 8283860, 11597404, 14496755, 15611890, 20295457, 28993510, 31223780, 40590914, 57987020, 81181828, 101477285, 202954570, 405909140]

約数ペア:

[(1, 405909140), (2, 202954570), (4, 101477285), (5, 81181828), (7, 57987020), (10, 40590914), (13, 31223780), (14, 28993510), (20, 20295457), (26, 15611890), (28, 14496755), (35, 11597404), (49, 8283860), (52, 7805945), (65, 6244756), (70, 5798702), (91, 4460540), (98, 4141930), (130, 3122378), (140, 2899351), (151, 2688140), (182, 2230270), (196, 2070965), (211, 1923740), (245, 1656772), (260, 1561189), (302, 1344070), (364, 1115135), (422, 961870), (455, 892108), (490, 828386), (604, 672035), (637, 637220), (755, 537628), (844, 480935), (910, 446054), (980, 414193), (1055, 384748), (1057, 384020), (1274, 318610), (1477, 274820), (1510, 268814), (1820, 223027), (1963, 206780), (2110, 192374), (2114, 192010), (2548, 159305), (2743, 147980), (2954, 137410), (3020, 134407), (3185, 127444), (3926, 103390), (4220, 96187), (4228, 96005), (5285, 76804), (5486, 73990), (5908, 68705), (6370, 63722), (7385, 54964), (7399, 54860), (7852, 51695), (9815, 41356), (10339, 39260), (10570, 38402), (10972, 36995), (12740, 31861), (13715, 29596), (13741, 29540), (14770, 27482), (14798, 27430), (19201, 21140), (19630, 20678)]