72420355

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{193}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 101910528

約数和(自身を除く): 29490173

約数列:

[1, 5, 7, 35, 71, 151, 193, 355, 497, 755, 965, 1057, 1351, 2485, 5285, 6755, 10721, 13703, 29143, 53605, 68515, 75047, 95921, 145715, 204001, 375235, 479605, 1020005, 2069153, 10345765, 14484071, 72420355]

約数ペア:

[(1, 72420355), (5, 14484071), (7, 10345765), (35, 2069153), (71, 1020005), (151, 479605), (193, 375235), (355, 204001), (497, 145715), (755, 95921), (965, 75047), (1057, 68515), (1351, 53605), (2485, 29143), (5285, 13703), (6755, 10721)]