31453100

素因数分解:

$2^2\times 5^2\times 7^4\times {\mathrm{131}}^1$

素因数の和:173

約数の個数: 90

約数和(自身を含む): 80231844

約数和(自身を除く): 48778744

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 131, 140, 175, 196, 245, 262, 343, 350, 490, 524, 655, 686, 700, 917, 980, 1225, 1310, 1372, 1715, 1834, 2401, 2450, 2620, 3275, 3430, 3668, 4585, 4802, 4900, 6419, 6550, 6860, 8575, 9170, 9604, 12005, 12838, 13100, 17150, 18340, 22925, 24010, 25676, 32095, 34300, 44933, 45850, 48020, 60025, 64190, 89866, 91700, 120050, 128380, 160475, 179732, 224665, 240100, 314531, 320950, 449330, 629062, 641900, 898660, 1123325, 1258124, 1572655, 2246650, 3145310, 4493300, 6290620, 7863275, 15726550, 31453100]

約数ペア:

[(1, 31453100), (2, 15726550), (4, 7863275), (5, 6290620), (7, 4493300), (10, 3145310), (14, 2246650), (20, 1572655), (25, 1258124), (28, 1123325), (35, 898660), (49, 641900), (50, 629062), (70, 449330), (98, 320950), (100, 314531), (131, 240100), (140, 224665), (175, 179732), (196, 160475), (245, 128380), (262, 120050), (343, 91700), (350, 89866), (490, 64190), (524, 60025), (655, 48020), (686, 45850), (700, 44933), (917, 34300), (980, 32095), (1225, 25676), (1310, 24010), (1372, 22925), (1715, 18340), (1834, 17150), (2401, 13100), (2450, 12838), (2620, 12005), (3275, 9604), (3430, 9170), (3668, 8575), (4585, 6860), (4802, 6550), (4900, 6419)]