81896796

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{179}}^2$

素因数の和:439

約数の個数: 54

約数和(自身を含む): 211111992

約数和(自身を除く): 129215196

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 179, 213, 284, 358, 426, 537, 639, 716, 852, 1074, 1278, 1611, 2148, 2556, 3222, 6444, 12709, 25418, 32041, 38127, 50836, 64082, 76254, 96123, 114381, 128164, 152508, 192246, 228762, 288369, 384492, 457524, 576738, 1153476, 2274911, 4549822, 6824733, 9099644, 13649466, 20474199, 27298932, 40948398, 81896796]

約数ペア:

[(1, 81896796), (2, 40948398), (3, 27298932), (4, 20474199), (6, 13649466), (9, 9099644), (12, 6824733), (18, 4549822), (36, 2274911), (71, 1153476), (142, 576738), (179, 457524), (213, 384492), (284, 288369), (358, 228762), (426, 192246), (537, 152508), (639, 128164), (716, 114381), (852, 96123), (1074, 76254), (1278, 64082), (1611, 50836), (2148, 38127), (2556, 32041), (3222, 25418), (6444, 12709)]