66501760

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7993}}^1$

素因数の和:8025

約数の個数: 64

約数和(自身を含む): 171231480

約数和(自身を除く): 104729720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 7993, 8320, 15986, 31972, 39965, 63944, 79930, 103909, 127888, 159860, 207818, 255776, 319720, 415636, 511552, 519545, 639440, 831272, 1023104, 1039090, 1278880, 1662544, 2078180, 2557760, 3325088, 4156360, 5115520, 6650176, 8312720, 13300352, 16625440, 33250880, 66501760]

約数ペア:

[(1, 66501760), (2, 33250880), (4, 16625440), (5, 13300352), (8, 8312720), (10, 6650176), (13, 5115520), (16, 4156360), (20, 3325088), (26, 2557760), (32, 2078180), (40, 1662544), (52, 1278880), (64, 1039090), (65, 1023104), (80, 831272), (104, 639440), (128, 519545), (130, 511552), (160, 415636), (208, 319720), (260, 255776), (320, 207818), (416, 159860), (520, 127888), (640, 103909), (832, 79930), (1040, 63944), (1664, 39965), (2080, 31972), (4160, 15986), (7993, 8320)]