20973900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{151}}^1\times {\mathrm{463}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 61218304

約数和(自身を除く): 40244404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 151, 300, 302, 453, 463, 604, 755, 906, 926, 1389, 1510, 1812, 1852, 2265, 2315, 2778, 3020, 3775, 4530, 4630, 5556, 6945, 7550, 9060, 9260, 11325, 11575, 13890, 15100, 22650, 23150, 27780, 34725, 45300, 46300, 69450, 69913, 138900, 139826, 209739, 279652, 349565, 419478, 699130, 838956, 1048695, 1398260, 1747825, 2097390, 3495650, 4194780, 5243475, 6991300, 10486950, 20973900]

約数ペア:

[(1, 20973900), (2, 10486950), (3, 6991300), (4, 5243475), (5, 4194780), (6, 3495650), (10, 2097390), (12, 1747825), (15, 1398260), (20, 1048695), (25, 838956), (30, 699130), (50, 419478), (60, 349565), (75, 279652), (100, 209739), (150, 139826), (151, 138900), (300, 69913), (302, 69450), (453, 46300), (463, 45300), (604, 34725), (755, 27780), (906, 23150), (926, 22650), (1389, 15100), (1510, 13890), (1812, 11575), (1852, 11325), (2265, 9260), (2315, 9060), (2778, 7550), (3020, 6945), (3775, 5556), (4530, 4630)]