27171700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 61871040

約数和(自身を除く): 34699340

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 71, 86, 89, 100, 142, 172, 178, 215, 284, 355, 356, 430, 445, 710, 860, 890, 1075, 1420, 1775, 1780, 2150, 2225, 3053, 3550, 3827, 4300, 4450, 6106, 6319, 7100, 7654, 8900, 12212, 12638, 15265, 15308, 19135, 25276, 30530, 31595, 38270, 61060, 63190, 76325, 76540, 95675, 126380, 152650, 157975, 191350, 271717, 305300, 315950, 382700, 543434, 631900, 1086868, 1358585, 2717170, 5434340, 6792925, 13585850, 27171700]

約数ペア:

[(1, 27171700), (2, 13585850), (4, 6792925), (5, 5434340), (10, 2717170), (20, 1358585), (25, 1086868), (43, 631900), (50, 543434), (71, 382700), (86, 315950), (89, 305300), (100, 271717), (142, 191350), (172, 157975), (178, 152650), (215, 126380), (284, 95675), (355, 76540), (356, 76325), (430, 63190), (445, 61060), (710, 38270), (860, 31595), (890, 30530), (1075, 25276), (1420, 19135), (1775, 15308), (1780, 15265), (2150, 12638), (2225, 12212), (3053, 8900), (3550, 7654), (3827, 7100), (4300, 6319), (4450, 6106)]