257673360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{21911}}^1$

素因数の和:21941

約数の個数: 120

約数和(自身を含む): 929244096

約数和(自身を除く): 671570736

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1960, 2352, 2940, 3920, 5880, 11760, 21911, 43822, 65733, 87644, 109555, 131466, 153377, 175288, 219110, 262932, 306754, 328665, 350576, 438220, 460131, 525864, 613508, 657330, 766885, 876440, 920262, 1051728, 1073639, 1227016, 1314660, 1533770, 1752880, 1840524, 2147278, 2300655, 2454032, 2629320, 3067540, 3220917, 3681048, 4294556, 4601310, 5258640, 5368195, 6135080, 6441834, 7362096, 8589112, 9202620, 10736390, 12270160, 12883668, 16104585, 17178224, 18405240, 21472780, 25767336, 32209170, 36810480, 42945560, 51534672, 64418340, 85891120, 128836680, 257673360]

約数ペア:

[(1, 257673360), (2, 128836680), (3, 85891120), (4, 64418340), (5, 51534672), (6, 42945560), (7, 36810480), (8, 32209170), (10, 25767336), (12, 21472780), (14, 18405240), (15, 17178224), (16, 16104585), (20, 12883668), (21, 12270160), (24, 10736390), (28, 9202620), (30, 8589112), (35, 7362096), (40, 6441834), (42, 6135080), (48, 5368195), (49, 5258640), (56, 4601310), (60, 4294556), (70, 3681048), (80, 3220917), (84, 3067540), (98, 2629320), (105, 2454032), (112, 2300655), (120, 2147278), (140, 1840524), (147, 1752880), (168, 1533770), (196, 1314660), (210, 1227016), (240, 1073639), (245, 1051728), (280, 920262), (294, 876440), (336, 766885), (392, 657330), (420, 613508), (490, 525864), (560, 460131), (588, 438220), (735, 350576), (784, 328665), (840, 306754), (980, 262932), (1176, 219110), (1470, 175288), (1680, 153377), (1960, 131466), (2352, 109555), (2940, 87644), (3920, 65733), (5880, 43822), (11760, 21911)]