128241520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2389}}^1$

素因数の和:2474

約数の個数: 80

約数和(自身を含む): 330737760

約数和(自身を除く): 202496240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 61, 80, 88, 110, 122, 176, 220, 244, 305, 440, 488, 610, 671, 880, 976, 1220, 1342, 2389, 2440, 2684, 3355, 4778, 4880, 5368, 6710, 9556, 10736, 11945, 13420, 19112, 23890, 26279, 26840, 38224, 47780, 52558, 53680, 95560, 105116, 131395, 145729, 191120, 210232, 262790, 291458, 420464, 525580, 582916, 728645, 1051160, 1165832, 1457290, 1603019, 2102320, 2331664, 2914580, 3206038, 5829160, 6412076, 8015095, 11658320, 12824152, 16030190, 25648304, 32060380, 64120760, 128241520]

約数ペア:

[(1, 128241520), (2, 64120760), (4, 32060380), (5, 25648304), (8, 16030190), (10, 12824152), (11, 11658320), (16, 8015095), (20, 6412076), (22, 5829160), (40, 3206038), (44, 2914580), (55, 2331664), (61, 2102320), (80, 1603019), (88, 1457290), (110, 1165832), (122, 1051160), (176, 728645), (220, 582916), (244, 525580), (305, 420464), (440, 291458), (488, 262790), (610, 210232), (671, 191120), (880, 145729), (976, 131395), (1220, 105116), (1342, 95560), (2389, 53680), (2440, 52558), (2684, 47780), (3355, 38224), (4778, 26840), (4880, 26279), (5368, 23890), (6710, 19112), (9556, 13420), (10736, 11945)]