254957640

素因数分解:

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

素因数の和:9843

約数の個数: 128

約数和(自身を含む): 902430720

約数和(自身を除く): 647473080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 2170, 2604, 3255, 3720, 4340, 5208, 6510, 8680, 9791, 13020, 19582, 26040, 29373, 39164, 48955, 58746, 68537, 78328, 97910, 117492, 137074, 146865, 195820, 205611, 234984, 274148, 293730, 303521, 342685, 391640, 411222, 548296, 587460, 607042, 685370, 822444, 910563, 1028055, 1174920, 1214084, 1370740, 1517605, 1644888, 1821126, 2056110, 2124647, 2428168, 2741480, 3035210, 3642252, 4112220, 4249294, 4552815, 6070420, 6373941, 7284504, 8224440, 8498588, 9105630, 10623235, 12140840, 12747882, 16997176, 18211260, 21246470, 25495764, 31869705, 36422520, 42492940, 50991528, 63739410, 84985880, 127478820, 254957640]

約数ペア:

[(1, 254957640), (2, 127478820), (3, 84985880), (4, 63739410), (5, 50991528), (6, 42492940), (7, 36422520), (8, 31869705), (10, 25495764), (12, 21246470), (14, 18211260), (15, 16997176), (20, 12747882), (21, 12140840), (24, 10623235), (28, 9105630), (30, 8498588), (31, 8224440), (35, 7284504), (40, 6373941), (42, 6070420), (56, 4552815), (60, 4249294), (62, 4112220), (70, 3642252), (84, 3035210), (93, 2741480), (105, 2428168), (120, 2124647), (124, 2056110), (140, 1821126), (155, 1644888), (168, 1517605), (186, 1370740), (210, 1214084), (217, 1174920), (248, 1028055), (280, 910563), (310, 822444), (372, 685370), (420, 607042), (434, 587460), (465, 548296), (620, 411222), (651, 391640), (744, 342685), (840, 303521), (868, 293730), (930, 274148), (1085, 234984), (1240, 205611), (1302, 195820), (1736, 146865), (1860, 137074), (2170, 117492), (2604, 97910), (3255, 78328), (3720, 68537), (4340, 58746), (5208, 48955), (6510, 39164), (8680, 29373), (9791, 26040), (13020, 19582)]