18031600

素因数分解:

$2^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:818

約数の個数: 60

約数和(自身を含む): 44090680

約数和(自身を除く): 26059080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 200, 244, 305, 400, 488, 610, 739, 976, 1220, 1478, 1525, 2440, 2956, 3050, 3695, 4880, 5912, 6100, 7390, 11824, 12200, 14780, 18475, 24400, 29560, 36950, 45079, 59120, 73900, 90158, 147800, 180316, 225395, 295600, 360632, 450790, 721264, 901580, 1126975, 1803160, 2253950, 3606320, 4507900, 9015800, 18031600]

約数ペア:

[(1, 18031600), (2, 9015800), (4, 4507900), (5, 3606320), (8, 2253950), (10, 1803160), (16, 1126975), (20, 901580), (25, 721264), (40, 450790), (50, 360632), (61, 295600), (80, 225395), (100, 180316), (122, 147800), (200, 90158), (244, 73900), (305, 59120), (400, 45079), (488, 36950), (610, 29560), (739, 24400), (976, 18475), (1220, 14780), (1478, 12200), (1525, 11824), (2440, 7390), (2956, 6100), (3050, 5912), (3695, 4880)]