91499120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:354

約数の個数: 80

約数和(自身を含む): 219360960

約数和(自身を除く): 127861840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 89, 142, 178, 181, 284, 355, 356, 362, 445, 568, 710, 712, 724, 890, 905, 1136, 1420, 1424, 1448, 1780, 1810, 2840, 2896, 3560, 3620, 5680, 6319, 7120, 7240, 12638, 12851, 14480, 16109, 25276, 25702, 31595, 32218, 50552, 51404, 63190, 64255, 64436, 80545, 101104, 102808, 126380, 128510, 128872, 161090, 205616, 252760, 257020, 257744, 322180, 505520, 514040, 644360, 1028080, 1143739, 1288720, 2287478, 4574956, 5718695, 9149912, 11437390, 18299824, 22874780, 45749560, 91499120]

約数ペア:

[(1, 91499120), (2, 45749560), (4, 22874780), (5, 18299824), (8, 11437390), (10, 9149912), (16, 5718695), (20, 4574956), (40, 2287478), (71, 1288720), (80, 1143739), (89, 1028080), (142, 644360), (178, 514040), (181, 505520), (284, 322180), (355, 257744), (356, 257020), (362, 252760), (445, 205616), (568, 161090), (710, 128872), (712, 128510), (724, 126380), (890, 102808), (905, 101104), (1136, 80545), (1420, 64436), (1424, 64255), (1448, 63190), (1780, 51404), (1810, 50552), (2840, 32218), (2896, 31595), (3560, 25702), (3620, 25276), (5680, 16109), (6319, 14480), (7120, 12851), (7240, 12638)]