81138090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3463}}^1$

素因数の和:3555

約数の個数: 64

約数和(自身を含む): 215488512

約数和(自身を除く): 134350422

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 71, 110, 142, 165, 213, 330, 355, 426, 710, 781, 1065, 1562, 2130, 2343, 3463, 3905, 4686, 6926, 7810, 10389, 11715, 17315, 20778, 23430, 34630, 38093, 51945, 76186, 103890, 114279, 190465, 228558, 245873, 380930, 491746, 571395, 737619, 1142790, 1229365, 1475238, 2458730, 2704603, 3688095, 5409206, 7376190, 8113809, 13523015, 16227618, 27046030, 40569045, 81138090]

約数ペア:

[(1, 81138090), (2, 40569045), (3, 27046030), (5, 16227618), (6, 13523015), (10, 8113809), (11, 7376190), (15, 5409206), (22, 3688095), (30, 2704603), (33, 2458730), (55, 1475238), (66, 1229365), (71, 1142790), (110, 737619), (142, 571395), (165, 491746), (213, 380930), (330, 245873), (355, 228558), (426, 190465), (710, 114279), (781, 103890), (1065, 76186), (1562, 51945), (2130, 38093), (2343, 34630), (3463, 23430), (3905, 20778), (4686, 17315), (6926, 11715), (7810, 10389)]