247989420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{196817}}^1$

素因数の和:196839

約数の個数: 72

約数和(自身を含む): 859701024

約数和(自身を除く): 611711604

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, 196817, 393634, 590451, 787268, 984085, 1180902, 1377719, 1771353, 1968170, 2361804, 2755438, 2952255, 3542706, 3936340, 4133157, 5510876, 5904510, 6888595, 7085412, 8266314, 8856765, 11809020, 12399471, 13777190, 16532628, 17713530, 20665785, 24798942, 27554380, 35427060, 41331570, 49597884, 61997355, 82663140, 123994710, 247989420]

約数ペア:

[(1, 247989420), (2, 123994710), (3, 82663140), (4, 61997355), (5, 49597884), (6, 41331570), (7, 35427060), (9, 27554380), (10, 24798942), (12, 20665785), (14, 17713530), (15, 16532628), (18, 13777190), (20, 12399471), (21, 11809020), (28, 8856765), (30, 8266314), (35, 7085412), (36, 6888595), (42, 5904510), (45, 5510876), (60, 4133157), (63, 3936340), (70, 3542706), (84, 2952255), (90, 2755438), (105, 2361804), (126, 1968170), (140, 1771353), (180, 1377719), (210, 1180902), (252, 984085), (315, 787268), (420, 590451), (630, 393634), (1260, 196817)]