84985880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9791}}^1$

素因数の和:9840

約数の個数: 64

約数和(自身を含む): 225607680

約数和(自身を除く): 140621800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 9791, 19582, 39164, 48955, 68537, 78328, 97910, 137074, 195820, 274148, 303521, 342685, 391640, 548296, 607042, 685370, 1214084, 1370740, 1517605, 2124647, 2428168, 2741480, 3035210, 4249294, 6070420, 8498588, 10623235, 12140840, 16997176, 21246470, 42492940, 84985880]

約数ペア:

[(1, 84985880), (2, 42492940), (4, 21246470), (5, 16997176), (7, 12140840), (8, 10623235), (10, 8498588), (14, 6070420), (20, 4249294), (28, 3035210), (31, 2741480), (35, 2428168), (40, 2124647), (56, 1517605), (62, 1370740), (70, 1214084), (124, 685370), (140, 607042), (155, 548296), (217, 391640), (248, 342685), (280, 303521), (310, 274148), (434, 195820), (620, 137074), (868, 97910), (1085, 78328), (1240, 68537), (1736, 48955), (2170, 39164), (4340, 19582), (8680, 9791)]