81717948

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{617}}^1$

素因数の和:923

約数の個数: 72

約数和(自身を含む): 223602288

約数和(自身を除く): 141884340

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 283, 468, 566, 617, 849, 1132, 1234, 1698, 1851, 2468, 2547, 3396, 3679, 3702, 5094, 5553, 7358, 7404, 8021, 10188, 11037, 11106, 14716, 16042, 22074, 22212, 24063, 32084, 33111, 44148, 48126, 66222, 72189, 96252, 132444, 144378, 174611, 288756, 349222, 523833, 698444, 1047666, 1571499, 2095332, 2269943, 3142998, 4539886, 6285996, 6809829, 9079772, 13619658, 20429487, 27239316, 40858974, 81717948]

約数ペア:

[(1, 81717948), (2, 40858974), (3, 27239316), (4, 20429487), (6, 13619658), (9, 9079772), (12, 6809829), (13, 6285996), (18, 4539886), (26, 3142998), (36, 2269943), (39, 2095332), (52, 1571499), (78, 1047666), (117, 698444), (156, 523833), (234, 349222), (283, 288756), (468, 174611), (566, 144378), (617, 132444), (849, 96252), (1132, 72189), (1234, 66222), (1698, 48126), (1851, 44148), (2468, 33111), (2547, 32084), (3396, 24063), (3679, 22212), (3702, 22074), (5094, 16042), (5553, 14716), (7358, 11106), (7404, 11037), (8021, 10188)]