81853300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{541}}^1$

素因数の和:661

約数の個数: 72

約数和(自身を含む): 190534680

約数和(自身を除く): 108681380

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 89, 100, 170, 178, 340, 356, 425, 445, 541, 850, 890, 1082, 1513, 1700, 1780, 2164, 2225, 2705, 3026, 4450, 5410, 6052, 7565, 8900, 9197, 10820, 13525, 15130, 18394, 27050, 30260, 36788, 37825, 45985, 48149, 54100, 75650, 91970, 96298, 151300, 183940, 192596, 229925, 240745, 459850, 481490, 818533, 919700, 962980, 1203725, 1637066, 2407450, 3274132, 4092665, 4814900, 8185330, 16370660, 20463325, 40926650, 81853300]

約数ペア:

[(1, 81853300), (2, 40926650), (4, 20463325), (5, 16370660), (10, 8185330), (17, 4814900), (20, 4092665), (25, 3274132), (34, 2407450), (50, 1637066), (68, 1203725), (85, 962980), (89, 919700), (100, 818533), (170, 481490), (178, 459850), (340, 240745), (356, 229925), (425, 192596), (445, 183940), (541, 151300), (850, 96298), (890, 91970), (1082, 75650), (1513, 54100), (1700, 48149), (1780, 45985), (2164, 37825), (2225, 36788), (2705, 30260), (3026, 27050), (4450, 18394), (5410, 15130), (6052, 13525), (7565, 10820), (8900, 9197)]