890509100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1163}}^1$

素因数の和:1240

約数の個数: 144

約数和(自身を含む): 2263188480

約数和(自身を除く): 1372679380

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 31, 38, 50, 52, 62, 65, 76, 95, 100, 124, 130, 155, 190, 247, 260, 310, 325, 380, 403, 475, 494, 589, 620, 650, 775, 806, 950, 988, 1163, 1178, 1235, 1300, 1550, 1612, 1900, 2015, 2326, 2356, 2470, 2945, 3100, 4030, 4652, 4940, 5815, 5890, 6175, 7657, 8060, 10075, 11630, 11780, 12350, 14725, 15119, 15314, 20150, 22097, 23260, 24700, 29075, 29450, 30238, 30628, 36053, 38285, 40300, 44194, 58150, 58900, 60476, 72106, 75595, 76570, 88388, 110485, 116300, 144212, 151190, 153140, 180265, 191425, 220970, 287261, 302380, 360530, 377975, 382850, 441940, 468689, 552425, 574522, 685007, 721060, 755950, 765700, 901325, 937378, 1104850, 1149044, 1370014, 1436305, 1511900, 1802650, 1874756, 2209700, 2343445, 2740028, 2872610, 3425035, 3605300, 4686890, 5745220, 6850070, 7181525, 8905091, 9373780, 11717225, 13700140, 14363050, 17125175, 17810182, 23434450, 28726100, 34250350, 35620364, 44525455, 46868900, 68500700, 89050910, 178101820, 222627275, 445254550, 890509100]

約数ペア:

[(1, 890509100), (2, 445254550), (4, 222627275), (5, 178101820), (10, 89050910), (13, 68500700), (19, 46868900), (20, 44525455), (25, 35620364), (26, 34250350), (31, 28726100), (38, 23434450), (50, 17810182), (52, 17125175), (62, 14363050), (65, 13700140), (76, 11717225), (95, 9373780), (100, 8905091), (124, 7181525), (130, 6850070), (155, 5745220), (190, 4686890), (247, 3605300), (260, 3425035), (310, 2872610), (325, 2740028), (380, 2343445), (403, 2209700), (475, 1874756), (494, 1802650), (589, 1511900), (620, 1436305), (650, 1370014), (775, 1149044), (806, 1104850), (950, 937378), (988, 901325), (1163, 765700), (1178, 755950), (1235, 721060), (1300, 685007), (1550, 574522), (1612, 552425), (1900, 468689), (2015, 441940), (2326, 382850), (2356, 377975), (2470, 360530), (2945, 302380), (3100, 287261), (4030, 220970), (4652, 191425), (4940, 180265), (5815, 153140), (5890, 151190), (6175, 144212), (7657, 116300), (8060, 110485), (10075, 88388), (11630, 76570), (11780, 75595), (12350, 72106), (14725, 60476), (15119, 58900), (15314, 58150), (20150, 44194), (22097, 40300), (23260, 38285), (24700, 36053), (29075, 30628), (29450, 30238)]