80181440

素因数分解:

$2^6\times 5^1\times {\mathrm{331}}^1\times {\mathrm{757}}^1$

素因数の和:1105

約数の個数: 56

約数和(自身を含む): 191761872

約数和(自身を除く): 111580432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 331, 662, 757, 1324, 1514, 1655, 2648, 3028, 3310, 3785, 5296, 6056, 6620, 7570, 10592, 12112, 13240, 15140, 21184, 24224, 26480, 30280, 48448, 52960, 60560, 105920, 121120, 242240, 250567, 501134, 1002268, 1252835, 2004536, 2505670, 4009072, 5011340, 8018144, 10022680, 16036288, 20045360, 40090720, 80181440]

約数ペア:

[(1, 80181440), (2, 40090720), (4, 20045360), (5, 16036288), (8, 10022680), (10, 8018144), (16, 5011340), (20, 4009072), (32, 2505670), (40, 2004536), (64, 1252835), (80, 1002268), (160, 501134), (320, 250567), (331, 242240), (662, 121120), (757, 105920), (1324, 60560), (1514, 52960), (1655, 48448), (2648, 30280), (3028, 26480), (3310, 24224), (3785, 21184), (5296, 15140), (6056, 13240), (6620, 12112), (7570, 10592)]