256324900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^2$

素因数の和:210

約数の個数: 108

約数和(自身を含む): 623743932

約数和(自身を除く): 367419032

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 37, 50, 52, 65, 73, 74, 100, 130, 146, 148, 185, 260, 292, 325, 365, 370, 481, 650, 730, 740, 925, 949, 962, 1300, 1460, 1825, 1850, 1898, 1924, 2405, 2701, 3650, 3700, 3796, 4745, 4810, 5329, 5402, 7300, 9490, 9620, 10658, 10804, 12025, 13505, 18980, 21316, 23725, 24050, 26645, 27010, 35113, 47450, 48100, 53290, 54020, 67525, 69277, 70226, 94900, 106580, 133225, 135050, 138554, 140452, 175565, 197173, 266450, 270100, 277108, 346385, 351130, 394346, 532900, 692770, 702260, 788692, 877825, 985865, 1385540, 1731925, 1755650, 1971730, 2563249, 3463850, 3511300, 3943460, 4929325, 5126498, 6927700, 9858650, 10252996, 12816245, 19717300, 25632490, 51264980, 64081225, 128162450, 256324900]

約数ペア:

[(1, 256324900), (2, 128162450), (4, 64081225), (5, 51264980), (10, 25632490), (13, 19717300), (20, 12816245), (25, 10252996), (26, 9858650), (37, 6927700), (50, 5126498), (52, 4929325), (65, 3943460), (73, 3511300), (74, 3463850), (100, 2563249), (130, 1971730), (146, 1755650), (148, 1731925), (185, 1385540), (260, 985865), (292, 877825), (325, 788692), (365, 702260), (370, 692770), (481, 532900), (650, 394346), (730, 351130), (740, 346385), (925, 277108), (949, 270100), (962, 266450), (1300, 197173), (1460, 175565), (1825, 140452), (1850, 138554), (1898, 135050), (1924, 133225), (2405, 106580), (2701, 94900), (3650, 70226), (3700, 69277), (3796, 67525), (4745, 54020), (4810, 53290), (5329, 48100), (5402, 47450), (7300, 35113), (9490, 27010), (9620, 26645), (10658, 24050), (10804, 23725), (12025, 21316), (13505, 18980)]