251018175

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{313}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 454227376

約数和(自身を除く): 203209201

約数列:

[1, 3, 5, 15, 17, 25, 37, 51, 75, 85, 111, 185, 255, 289, 313, 425, 555, 629, 867, 925, 939, 1275, 1445, 1565, 1887, 2775, 3145, 4335, 4695, 5321, 7225, 7825, 9435, 10693, 11581, 15725, 15963, 21675, 23475, 26605, 32079, 34743, 47175, 53465, 57905, 79815, 90457, 133025, 160395, 173715, 196877, 267325, 271371, 289525, 399075, 452285, 590631, 801975, 868575, 984385, 1356855, 2261425, 2953155, 3346909, 4921925, 6784275, 10040727, 14765775, 16734545, 50203635, 83672725, 251018175]

約数ペア:

[(1, 251018175), (3, 83672725), (5, 50203635), (15, 16734545), (17, 14765775), (25, 10040727), (37, 6784275), (51, 4921925), (75, 3346909), (85, 2953155), (111, 2261425), (185, 1356855), (255, 984385), (289, 868575), (313, 801975), (425, 590631), (555, 452285), (629, 399075), (867, 289525), (925, 271371), (939, 267325), (1275, 196877), (1445, 173715), (1565, 160395), (1887, 133025), (2775, 90457), (3145, 79815), (4335, 57905), (4695, 53465), (5321, 47175), (7225, 34743), (7825, 32079), (9435, 26605), (10693, 23475), (11581, 21675), (15725, 15963)]