20783700

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{3299}}^1$

素因数の和:3326

約数の個数: 108

約数和(自身を含む): 74474400

約数和(自身を除く): 53690700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 126, 140, 150, 175, 180, 210, 225, 252, 300, 315, 350, 420, 450, 525, 630, 700, 900, 1050, 1260, 1575, 2100, 3150, 3299, 6300, 6598, 9897, 13196, 16495, 19794, 23093, 29691, 32990, 39588, 46186, 49485, 59382, 65980, 69279, 82475, 92372, 98970, 115465, 118764, 138558, 148455, 164950, 197940, 207837, 230930, 247425, 277116, 296910, 329900, 346395, 415674, 461860, 494850, 577325, 593820, 692790, 742275, 831348, 989700, 1039185, 1154650, 1385580, 1484550, 1731975, 2078370, 2309300, 2969100, 3463950, 4156740, 5195925, 6927900, 10391850, 20783700]

約数ペア:

[(1, 20783700), (2, 10391850), (3, 6927900), (4, 5195925), (5, 4156740), (6, 3463950), (7, 2969100), (9, 2309300), (10, 2078370), (12, 1731975), (14, 1484550), (15, 1385580), (18, 1154650), (20, 1039185), (21, 989700), (25, 831348), (28, 742275), (30, 692790), (35, 593820), (36, 577325), (42, 494850), (45, 461860), (50, 415674), (60, 346395), (63, 329900), (70, 296910), (75, 277116), (84, 247425), (90, 230930), (100, 207837), (105, 197940), (126, 164950), (140, 148455), (150, 138558), (175, 118764), (180, 115465), (210, 98970), (225, 92372), (252, 82475), (300, 69279), (315, 65980), (350, 59382), (420, 49485), (450, 46186), (525, 39588), (630, 32990), (700, 29691), (900, 23093), (1050, 19794), (1260, 16495), (1575, 13196), (2100, 9897), (3150, 6598), (3299, 6300)]