27880425

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 54579096

約数和(自身を除く): 26698671

約数列:

[1, 3, 5, 9, 15, 17, 25, 37, 45, 51, 75, 85, 111, 153, 185, 197, 225, 255, 333, 425, 555, 591, 629, 765, 925, 985, 1275, 1665, 1773, 1887, 2775, 2955, 3145, 3349, 3825, 4925, 5661, 7289, 8325, 8865, 9435, 10047, 14775, 15725, 16745, 21867, 28305, 30141, 36445, 44325, 47175, 50235, 65601, 83725, 109335, 123913, 141525, 150705, 182225, 251175, 328005, 371739, 546675, 619565, 753525, 1115217, 1640025, 1858695, 3097825, 5576085, 9293475, 27880425]

約数ペア:

[(1, 27880425), (3, 9293475), (5, 5576085), (9, 3097825), (15, 1858695), (17, 1640025), (25, 1115217), (37, 753525), (45, 619565), (51, 546675), (75, 371739), (85, 328005), (111, 251175), (153, 182225), (185, 150705), (197, 141525), (225, 123913), (255, 109335), (333, 83725), (425, 65601), (555, 50235), (591, 47175), (629, 44325), (765, 36445), (925, 30141), (985, 28305), (1275, 21867), (1665, 16745), (1773, 15725), (1887, 14775), (2775, 10047), (2955, 9435), (3145, 8865), (3349, 8325), (3825, 7289), (4925, 5661)]