25664900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:549

約数の個数: 72

約数和(自身を含む): 60996096

約数和(自身を除く): 35331196

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 31, 34, 50, 62, 68, 85, 100, 124, 155, 170, 310, 340, 425, 487, 527, 620, 775, 850, 974, 1054, 1550, 1700, 1948, 2108, 2435, 2635, 3100, 4870, 5270, 8279, 9740, 10540, 12175, 13175, 15097, 16558, 24350, 26350, 30194, 33116, 41395, 48700, 52700, 60388, 75485, 82790, 150970, 165580, 206975, 256649, 301940, 377425, 413950, 513298, 754850, 827900, 1026596, 1283245, 1509700, 2566490, 5132980, 6416225, 12832450, 25664900]

約数ペア:

[(1, 25664900), (2, 12832450), (4, 6416225), (5, 5132980), (10, 2566490), (17, 1509700), (20, 1283245), (25, 1026596), (31, 827900), (34, 754850), (50, 513298), (62, 413950), (68, 377425), (85, 301940), (100, 256649), (124, 206975), (155, 165580), (170, 150970), (310, 82790), (340, 75485), (425, 60388), (487, 52700), (527, 48700), (620, 41395), (775, 33116), (850, 30194), (974, 26350), (1054, 24350), (1550, 16558), (1700, 15097), (1948, 13175), (2108, 12175), (2435, 10540), (2635, 9740), (3100, 8279), (4870, 5270)]