85581700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1453}}^1$

素因数の和:1517

約数の個数: 72

約数和(自身を含む): 201931520

約数和(自身を除く): 116349820

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 190, 310, 380, 475, 589, 620, 775, 950, 1178, 1453, 1550, 1900, 2356, 2906, 2945, 3100, 5812, 5890, 7265, 11780, 14530, 14725, 27607, 29060, 29450, 36325, 45043, 55214, 58900, 72650, 90086, 110428, 138035, 145300, 180172, 225215, 276070, 450430, 552140, 690175, 855817, 900860, 1126075, 1380350, 1711634, 2252150, 2760700, 3423268, 4279085, 4504300, 8558170, 17116340, 21395425, 42790850, 85581700]

約数ペア:

[(1, 85581700), (2, 42790850), (4, 21395425), (5, 17116340), (10, 8558170), (19, 4504300), (20, 4279085), (25, 3423268), (31, 2760700), (38, 2252150), (50, 1711634), (62, 1380350), (76, 1126075), (95, 900860), (100, 855817), (124, 690175), (155, 552140), (190, 450430), (310, 276070), (380, 225215), (475, 180172), (589, 145300), (620, 138035), (775, 110428), (950, 90086), (1178, 72650), (1453, 58900), (1550, 55214), (1900, 45043), (2356, 36325), (2906, 29450), (2945, 29060), (3100, 27607), (5812, 14725), (5890, 14530), (7265, 11780)]