20149898080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{261823}}^1$

素因数の和:261888

約数の個数: 96

約数和(自身を含む): 52651759104

約数和(自身を除く): 32501861024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 65, 74, 80, 104, 130, 148, 160, 185, 208, 260, 296, 370, 416, 481, 520, 592, 740, 962, 1040, 1184, 1480, 1924, 2080, 2405, 2960, 3848, 4810, 5920, 7696, 9620, 15392, 19240, 38480, 76960, 261823, 523646, 1047292, 1309115, 2094584, 2618230, 3403699, 4189168, 5236460, 6807398, 8378336, 9687451, 10472920, 13614796, 17018495, 19374902, 20945840, 27229592, 34036990, 38749804, 41891680, 48437255, 54459184, 68073980, 77499608, 96874510, 108918368, 125936863, 136147960, 154999216, 193749020, 251873726, 272295920, 309998432, 387498040, 503747452, 544591840, 629684315, 774996080, 1007494904, 1259368630, 1549992160, 2014989808, 2518737260, 4029979616, 5037474520, 10074949040, 20149898080]

約数ペア:

[(1, 20149898080), (2, 10074949040), (4, 5037474520), (5, 4029979616), (8, 2518737260), (10, 2014989808), (13, 1549992160), (16, 1259368630), (20, 1007494904), (26, 774996080), (32, 629684315), (37, 544591840), (40, 503747452), (52, 387498040), (65, 309998432), (74, 272295920), (80, 251873726), (104, 193749020), (130, 154999216), (148, 136147960), (160, 125936863), (185, 108918368), (208, 96874510), (260, 77499608), (296, 68073980), (370, 54459184), (416, 48437255), (481, 41891680), (520, 38749804), (592, 34036990), (740, 27229592), (962, 20945840), (1040, 19374902), (1184, 17018495), (1480, 13614796), (1924, 10472920), (2080, 9687451), (2405, 8378336), (2960, 6807398), (3848, 5236460), (4810, 4189168), (5920, 3403699), (7696, 2618230), (9620, 2094584), (15392, 1309115), (19240, 1047292), (38480, 523646), (76960, 261823)]