20493900

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{3253}}^1$

素因数の和:3280

約数の個数: 108

約数和(自身を含む): 73436272

約数和(自身を除く): 52942372

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, 3253, 6300, 6506, 9759, 13012, 16265, 19518, 22771, 29277, 32530, 39036, 45542, 48795, 58554, 65060, 68313, 81325, 91084, 97590, 113855, 117108, 136626, 146385, 162650, 195180, 204939, 227710, 243975, 273252, 292770, 325300, 341565, 409878, 455420, 487950, 569275, 585540, 683130, 731925, 819756, 975900, 1024695, 1138550, 1366260, 1463850, 1707825, 2049390, 2277100, 2927700, 3415650, 4098780, 5123475, 6831300, 10246950, 20493900]

約数ペア:

[(1, 20493900), (2, 10246950), (3, 6831300), (4, 5123475), (5, 4098780), (6, 3415650), (7, 2927700), (9, 2277100), (10, 2049390), (12, 1707825), (14, 1463850), (15, 1366260), (18, 1138550), (20, 1024695), (21, 975900), (25, 819756), (28, 731925), (30, 683130), (35, 585540), (36, 569275), (42, 487950), (45, 455420), (50, 409878), (60, 341565), (63, 325300), (70, 292770), (75, 273252), (84, 243975), (90, 227710), (100, 204939), (105, 195180), (126, 162650), (140, 146385), (150, 136626), (175, 117108), (180, 113855), (210, 97590), (225, 91084), (252, 81325), (300, 68313), (315, 65060), (350, 58554), (420, 48795), (450, 45542), (525, 39036), (630, 32530), (700, 29277), (900, 22771), (1050, 19518), (1260, 16265), (1575, 13012), (2100, 9759), (3150, 6506), (3253, 6300)]