20349840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12113}}^1$

素因数の和:12136

約数の個数: 80

約数和(自身を含む): 72102528

約数和(自身を除く): 51752688

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12113, 24226, 36339, 48452, 60565, 72678, 84791, 96904, 121130, 145356, 169582, 181695, 193808, 242260, 254373, 290712, 339164, 363390, 423955, 484520, 508746, 581424, 678328, 726780, 847910, 969040, 1017492, 1271865, 1356656, 1453560, 1695820, 2034984, 2543730, 2907120, 3391640, 4069968, 5087460, 6783280, 10174920, 20349840]

約数ペア:

[(1, 20349840), (2, 10174920), (3, 6783280), (4, 5087460), (5, 4069968), (6, 3391640), (7, 2907120), (8, 2543730), (10, 2034984), (12, 1695820), (14, 1453560), (15, 1356656), (16, 1271865), (20, 1017492), (21, 969040), (24, 847910), (28, 726780), (30, 678328), (35, 581424), (40, 508746), (42, 484520), (48, 423955), (56, 363390), (60, 339164), (70, 290712), (80, 254373), (84, 242260), (105, 193808), (112, 181695), (120, 169582), (140, 145356), (168, 121130), (210, 96904), (240, 84791), (280, 72678), (336, 60565), (420, 48452), (560, 36339), (840, 24226), (1680, 12113)]