28079800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:701

約数の個数: 96

約数和(自身を含む): 77137920

約数和(自身を除く): 49058120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 100, 124, 140, 155, 175, 200, 217, 248, 280, 310, 350, 434, 620, 647, 700, 775, 868, 1085, 1240, 1294, 1400, 1550, 1736, 2170, 2588, 3100, 3235, 4340, 4529, 5176, 5425, 6200, 6470, 8680, 9058, 10850, 12940, 16175, 18116, 20057, 21700, 22645, 25880, 32350, 36232, 40114, 43400, 45290, 64700, 80228, 90580, 100285, 113225, 129400, 140399, 160456, 181160, 200570, 226450, 280798, 401140, 452900, 501425, 561596, 701995, 802280, 905800, 1002850, 1123192, 1403990, 2005700, 2807980, 3509975, 4011400, 5615960, 7019950, 14039900, 28079800]

約数ペア:

[(1, 28079800), (2, 14039900), (4, 7019950), (5, 5615960), (7, 4011400), (8, 3509975), (10, 2807980), (14, 2005700), (20, 1403990), (25, 1123192), (28, 1002850), (31, 905800), (35, 802280), (40, 701995), (50, 561596), (56, 501425), (62, 452900), (70, 401140), (100, 280798), (124, 226450), (140, 200570), (155, 181160), (175, 160456), (200, 140399), (217, 129400), (248, 113225), (280, 100285), (310, 90580), (350, 80228), (434, 64700), (620, 45290), (647, 43400), (700, 40114), (775, 36232), (868, 32350), (1085, 25880), (1240, 22645), (1294, 21700), (1400, 20057), (1550, 18116), (1736, 16175), (2170, 12940), (2588, 10850), (3100, 9058), (3235, 8680), (4340, 6470), (4529, 6200), (5176, 5425)]