220751000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{7121}}^1$

素因数の和:7173

約数の個数: 64

約数和(自身を含む): 533295360

約数和(自身を除く): 312544360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 200, 248, 250, 310, 500, 620, 775, 1000, 1240, 1550, 3100, 3875, 6200, 7121, 7750, 14242, 15500, 28484, 31000, 35605, 56968, 71210, 142420, 178025, 220751, 284840, 356050, 441502, 712100, 883004, 890125, 1103755, 1424200, 1766008, 1780250, 2207510, 3560500, 4415020, 5518775, 7121000, 8830040, 11037550, 22075100, 27593875, 44150200, 55187750, 110375500, 220751000]

約数ペア:

[(1, 220751000), (2, 110375500), (4, 55187750), (5, 44150200), (8, 27593875), (10, 22075100), (20, 11037550), (25, 8830040), (31, 7121000), (40, 5518775), (50, 4415020), (62, 3560500), (100, 2207510), (124, 1780250), (125, 1766008), (155, 1424200), (200, 1103755), (248, 890125), (250, 883004), (310, 712100), (500, 441502), (620, 356050), (775, 284840), (1000, 220751), (1240, 178025), (1550, 142420), (3100, 71210), (3875, 56968), (6200, 35605), (7121, 31000), (7750, 28484), (14242, 15500)]