18218900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1531}}^1$

素因数の和:1569

約数の個数: 72

約数和(自身を含む): 47871936

約数和(自身を除く): 29653036

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 68, 70, 85, 100, 119, 140, 170, 175, 238, 340, 350, 425, 476, 595, 700, 850, 1190, 1531, 1700, 2380, 2975, 3062, 5950, 6124, 7655, 10717, 11900, 15310, 21434, 26027, 30620, 38275, 42868, 52054, 53585, 76550, 104108, 107170, 130135, 153100, 182189, 214340, 260270, 267925, 364378, 520540, 535850, 650675, 728756, 910945, 1071700, 1301350, 1821890, 2602700, 3643780, 4554725, 9109450, 18218900]

約数ペア:

[(1, 18218900), (2, 9109450), (4, 4554725), (5, 3643780), (7, 2602700), (10, 1821890), (14, 1301350), (17, 1071700), (20, 910945), (25, 728756), (28, 650675), (34, 535850), (35, 520540), (50, 364378), (68, 267925), (70, 260270), (85, 214340), (100, 182189), (119, 153100), (140, 130135), (170, 107170), (175, 104108), (238, 76550), (340, 53585), (350, 52054), (425, 42868), (476, 38275), (595, 30620), (700, 26027), (850, 21434), (1190, 15310), (1531, 11900), (1700, 10717), (2380, 7655), (2975, 6124), (3062, 5950)]