90020500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:194

約数の個数: 96

約数和(自身を含む): 207567360

約数和(自身を除く): 117546860

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 53, 79, 86, 100, 106, 125, 158, 172, 212, 215, 250, 265, 316, 395, 430, 500, 530, 790, 860, 1060, 1075, 1325, 1580, 1975, 2150, 2279, 2650, 3397, 3950, 4187, 4300, 4558, 5300, 5375, 6625, 6794, 7900, 8374, 9116, 9875, 10750, 11395, 13250, 13588, 16748, 16985, 19750, 20935, 21500, 22790, 26500, 33970, 39500, 41870, 45580, 56975, 67940, 83740, 84925, 104675, 113950, 169850, 180041, 209350, 227900, 284875, 339700, 360082, 418700, 424625, 523375, 569750, 720164, 849250, 900205, 1046750, 1139500, 1698500, 1800410, 2093500, 3600820, 4501025, 9002050, 18004100, 22505125, 45010250, 90020500]

約数ペア:

[(1, 90020500), (2, 45010250), (4, 22505125), (5, 18004100), (10, 9002050), (20, 4501025), (25, 3600820), (43, 2093500), (50, 1800410), (53, 1698500), (79, 1139500), (86, 1046750), (100, 900205), (106, 849250), (125, 720164), (158, 569750), (172, 523375), (212, 424625), (215, 418700), (250, 360082), (265, 339700), (316, 284875), (395, 227900), (430, 209350), (500, 180041), (530, 169850), (790, 113950), (860, 104675), (1060, 84925), (1075, 83740), (1325, 67940), (1580, 56975), (1975, 45580), (2150, 41870), (2279, 39500), (2650, 33970), (3397, 26500), (3950, 22790), (4187, 21500), (4300, 20935), (4558, 19750), (5300, 16985), (5375, 16748), (6625, 13588), (6794, 13250), (7900, 11395), (8374, 10750), (9116, 9875)]