261403380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{207463}}^1$

素因数の和:207485

約数の個数: 72

約数和(自身を含む): 906202752

約数和(自身を除く): 644799372

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 207463, 414926, 622389, 829852, 1037315, 1244778, 1452241, 1867167, 2074630, 2489556, 2904482, 3111945, 3734334, 4149260, 4356723, 5808964, 6223890, 7261205, 7468668, 8713446, 9335835, 12447780, 13070169, 14522410, 17426892, 18671670, 21783615, 26140338, 29044820, 37343340, 43567230, 52280676, 65350845, 87134460, 130701690, 261403380]

約数ペア:

[(1, 261403380), (2, 130701690), (3, 87134460), (4, 65350845), (5, 52280676), (6, 43567230), (7, 37343340), (9, 29044820), (10, 26140338), (12, 21783615), (14, 18671670), (15, 17426892), (18, 14522410), (20, 13070169), (21, 12447780), (28, 9335835), (30, 8713446), (35, 7468668), (36, 7261205), (42, 6223890), (45, 5808964), (60, 4356723), (63, 4149260), (70, 3734334), (84, 3111945), (90, 2904482), (105, 2489556), (126, 2074630), (140, 1867167), (180, 1452241), (210, 1244778), (252, 1037315), (315, 829852), (420, 622389), (630, 414926), (1260, 207463)]