256972770

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{887}}^1$

素因数の和:969

約数の個数: 128

約数和(自身を含む): 728870400

約数和(自身を除く): 471897630

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 37, 45, 54, 58, 74, 87, 90, 111, 135, 145, 174, 185, 222, 261, 270, 290, 333, 370, 435, 522, 555, 666, 783, 870, 887, 999, 1073, 1110, 1305, 1566, 1665, 1774, 1998, 2146, 2610, 2661, 3219, 3330, 3915, 4435, 4995, 5322, 5365, 6438, 7830, 7983, 8870, 9657, 9990, 10730, 13305, 15966, 16095, 19314, 23949, 25723, 26610, 28971, 32190, 32819, 39915, 47898, 48285, 51446, 57942, 65638, 77169, 79830, 96570, 98457, 119745, 128615, 144855, 154338, 164095, 196914, 231507, 239490, 257230, 289710, 295371, 328190, 385845, 463014, 492285, 590742, 694521, 771690, 886113, 951751, 984570, 1157535, 1389042, 1476855, 1772226, 1903502, 2315070, 2855253, 2953710, 3472605, 4430565, 4758755, 5710506, 6945210, 8565759, 8861130, 9517510, 14276265, 17131518, 25697277, 28552530, 42828795, 51394554, 85657590, 128486385, 256972770]

約数ペア:

[(1, 256972770), (2, 128486385), (3, 85657590), (5, 51394554), (6, 42828795), (9, 28552530), (10, 25697277), (15, 17131518), (18, 14276265), (27, 9517510), (29, 8861130), (30, 8565759), (37, 6945210), (45, 5710506), (54, 4758755), (58, 4430565), (74, 3472605), (87, 2953710), (90, 2855253), (111, 2315070), (135, 1903502), (145, 1772226), (174, 1476855), (185, 1389042), (222, 1157535), (261, 984570), (270, 951751), (290, 886113), (333, 771690), (370, 694521), (435, 590742), (522, 492285), (555, 463014), (666, 385845), (783, 328190), (870, 295371), (887, 289710), (999, 257230), (1073, 239490), (1110, 231507), (1305, 196914), (1566, 164095), (1665, 154338), (1774, 144855), (1998, 128615), (2146, 119745), (2610, 98457), (2661, 96570), (3219, 79830), (3330, 77169), (3915, 65638), (4435, 57942), (4995, 51446), (5322, 48285), (5365, 47898), (6438, 39915), (7830, 32819), (7983, 32190), (8870, 28971), (9657, 26610), (9990, 25723), (10730, 23949), (13305, 19314), (15966, 16095)]