197991040

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1$

素因数の和:534

約数の個数: 128

約数和(自身を含む): 520506000

約数和(自身を除く): 322514960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 53, 64, 65, 80, 104, 106, 128, 130, 160, 208, 212, 260, 265, 320, 416, 424, 449, 520, 530, 640, 689, 832, 848, 898, 1040, 1060, 1378, 1664, 1696, 1796, 2080, 2120, 2245, 2756, 3392, 3445, 3592, 4160, 4240, 4490, 5512, 5837, 6784, 6890, 7184, 8320, 8480, 8980, 11024, 11674, 13780, 14368, 16960, 17960, 22048, 23348, 23797, 27560, 28736, 29185, 33920, 35920, 44096, 46696, 47594, 55120, 57472, 58370, 71840, 88192, 93392, 95188, 110240, 116740, 118985, 143680, 186784, 190376, 220480, 233480, 237970, 287360, 309361, 373568, 380752, 440960, 466960, 475940, 618722, 747136, 761504, 933920, 951880, 1237444, 1523008, 1546805, 1867840, 1903760, 2474888, 3046016, 3093610, 3735680, 3807520, 4949776, 6187220, 7615040, 9899552, 12374440, 15230080, 19799104, 24748880, 39598208, 49497760, 98995520, 197991040]

約数ペア:

[(1, 197991040), (2, 98995520), (4, 49497760), (5, 39598208), (8, 24748880), (10, 19799104), (13, 15230080), (16, 12374440), (20, 9899552), (26, 7615040), (32, 6187220), (40, 4949776), (52, 3807520), (53, 3735680), (64, 3093610), (65, 3046016), (80, 2474888), (104, 1903760), (106, 1867840), (128, 1546805), (130, 1523008), (160, 1237444), (208, 951880), (212, 933920), (260, 761504), (265, 747136), (320, 618722), (416, 475940), (424, 466960), (449, 440960), (520, 380752), (530, 373568), (640, 309361), (689, 287360), (832, 237970), (848, 233480), (898, 220480), (1040, 190376), (1060, 186784), (1378, 143680), (1664, 118985), (1696, 116740), (1796, 110240), (2080, 95188), (2120, 93392), (2245, 88192), (2756, 71840), (3392, 58370), (3445, 57472), (3592, 55120), (4160, 47594), (4240, 46696), (4490, 44096), (5512, 35920), (5837, 33920), (6784, 29185), (6890, 28736), (7184, 27560), (8320, 23797), (8480, 23348), (8980, 22048), (11024, 17960), (11674, 16960), (13780, 14368)]