64254320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1993}}^1$

素因数の和:2050

約数の個数: 80

約数和(自身を含む): 166156032

約数和(自身を除く): 101901712

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 1993, 2015, 2480, 3224, 3986, 4030, 6448, 7972, 8060, 9965, 15944, 16120, 19930, 25909, 31888, 32240, 39860, 51818, 61783, 79720, 103636, 123566, 129545, 159440, 207272, 247132, 259090, 308915, 414544, 494264, 518180, 617830, 803179, 988528, 1036360, 1235660, 1606358, 2072720, 2471320, 3212716, 4015895, 4942640, 6425432, 8031790, 12850864, 16063580, 32127160, 64254320]

約数ペア:

[(1, 64254320), (2, 32127160), (4, 16063580), (5, 12850864), (8, 8031790), (10, 6425432), (13, 4942640), (16, 4015895), (20, 3212716), (26, 2471320), (31, 2072720), (40, 1606358), (52, 1235660), (62, 1036360), (65, 988528), (80, 803179), (104, 617830), (124, 518180), (130, 494264), (155, 414544), (208, 308915), (248, 259090), (260, 247132), (310, 207272), (403, 159440), (496, 129545), (520, 123566), (620, 103636), (806, 79720), (1040, 61783), (1240, 51818), (1612, 39860), (1993, 32240), (2015, 31888), (2480, 25909), (3224, 19930), (3986, 16120), (4030, 15944), (6448, 9965), (7972, 8060)]