81963070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{353}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 176173056

約数和(自身を除く): 94209986

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 107, 155, 214, 217, 310, 353, 434, 535, 706, 749, 1070, 1085, 1498, 1765, 2170, 2471, 3317, 3530, 3745, 4942, 6634, 7490, 10943, 12355, 16585, 21886, 23219, 24710, 33170, 37771, 46438, 54715, 75542, 76601, 109430, 116095, 153202, 188855, 232190, 264397, 377710, 383005, 528794, 766010, 1170901, 1321985, 2341802, 2643970, 5854505, 8196307, 11709010, 16392614, 40981535, 81963070]

約数ペア:

[(1, 81963070), (2, 40981535), (5, 16392614), (7, 11709010), (10, 8196307), (14, 5854505), (31, 2643970), (35, 2341802), (62, 1321985), (70, 1170901), (107, 766010), (155, 528794), (214, 383005), (217, 377710), (310, 264397), (353, 232190), (434, 188855), (535, 153202), (706, 116095), (749, 109430), (1070, 76601), (1085, 75542), (1498, 54715), (1765, 46438), (2170, 37771), (2471, 33170), (3317, 24710), (3530, 23219), (3745, 21886), (4942, 16585), (6634, 12355), (7490, 10943)]