81887364

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4729}}^1$

素因数の和:4789

約数の個数: 72

約数和(自身を含む): 228988760

約数和(自身を除く): 147101396

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 37, 39, 52, 74, 78, 111, 117, 148, 156, 222, 234, 333, 444, 468, 481, 666, 962, 1332, 1443, 1924, 2886, 4329, 4729, 5772, 8658, 9458, 14187, 17316, 18916, 28374, 42561, 56748, 61477, 85122, 122954, 170244, 174973, 184431, 245908, 349946, 368862, 524919, 553293, 699892, 737724, 1049838, 1106586, 1574757, 2099676, 2213172, 2274649, 3149514, 4549298, 6299028, 6823947, 9098596, 13647894, 20471841, 27295788, 40943682, 81887364]

約数ペア:

[(1, 81887364), (2, 40943682), (3, 27295788), (4, 20471841), (6, 13647894), (9, 9098596), (12, 6823947), (13, 6299028), (18, 4549298), (26, 3149514), (36, 2274649), (37, 2213172), (39, 2099676), (52, 1574757), (74, 1106586), (78, 1049838), (111, 737724), (117, 699892), (148, 553293), (156, 524919), (222, 368862), (234, 349946), (333, 245908), (444, 184431), (468, 174973), (481, 170244), (666, 122954), (962, 85122), (1332, 61477), (1443, 56748), (1924, 42561), (2886, 28374), (4329, 18916), (4729, 17316), (5772, 14187), (8658, 9458)]