257557920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:979

約数の個数: 192

約数和(自身を含む): 882524160

約数和(自身を除く): 624966240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 31, 32, 38, 40, 48, 57, 60, 62, 76, 80, 93, 95, 96, 114, 120, 124, 152, 155, 160, 186, 190, 228, 240, 248, 285, 304, 310, 372, 380, 456, 465, 480, 496, 570, 589, 608, 620, 744, 760, 911, 912, 930, 992, 1140, 1178, 1240, 1488, 1520, 1767, 1822, 1824, 1860, 2280, 2356, 2480, 2733, 2945, 2976, 3040, 3534, 3644, 3720, 4555, 4560, 4712, 4960, 5466, 5890, 7068, 7288, 7440, 8835, 9110, 9120, 9424, 10932, 11780, 13665, 14136, 14576, 14880, 17309, 17670, 18220, 18848, 21864, 23560, 27330, 28241, 28272, 29152, 34618, 35340, 36440, 43728, 47120, 51927, 54660, 56482, 56544, 69236, 70680, 72880, 84723, 86545, 87456, 94240, 103854, 109320, 112964, 138472, 141205, 141360, 145760, 169446, 173090, 207708, 218640, 225928, 259635, 276944, 282410, 282720, 338892, 346180, 415416, 423615, 437280, 451856, 519270, 536579, 553888, 564820, 677784, 692360, 830832, 847230, 903712, 1038540, 1073158, 1129640, 1355568, 1384720, 1609737, 1661664, 1694460, 2077080, 2146316, 2259280, 2682895, 2711136, 2769440, 3219474, 3388920, 4154160, 4292632, 4518560, 5365790, 6438948, 6777840, 8048685, 8308320, 8585264, 10731580, 12877896, 13555680, 16097370, 17170528, 21463160, 25755792, 32194740, 42926320, 51511584, 64389480, 85852640, 128778960, 257557920]

約数ペア:

[(1, 257557920), (2, 128778960), (3, 85852640), (4, 64389480), (5, 51511584), (6, 42926320), (8, 32194740), (10, 25755792), (12, 21463160), (15, 17170528), (16, 16097370), (19, 13555680), (20, 12877896), (24, 10731580), (30, 8585264), (31, 8308320), (32, 8048685), (38, 6777840), (40, 6438948), (48, 5365790), (57, 4518560), (60, 4292632), (62, 4154160), (76, 3388920), (80, 3219474), (93, 2769440), (95, 2711136), (96, 2682895), (114, 2259280), (120, 2146316), (124, 2077080), (152, 1694460), (155, 1661664), (160, 1609737), (186, 1384720), (190, 1355568), (228, 1129640), (240, 1073158), (248, 1038540), (285, 903712), (304, 847230), (310, 830832), (372, 692360), (380, 677784), (456, 564820), (465, 553888), (480, 536579), (496, 519270), (570, 451856), (589, 437280), (608, 423615), (620, 415416), (744, 346180), (760, 338892), (911, 282720), (912, 282410), (930, 276944), (992, 259635), (1140, 225928), (1178, 218640), (1240, 207708), (1488, 173090), (1520, 169446), (1767, 145760), (1822, 141360), (1824, 141205), (1860, 138472), (2280, 112964), (2356, 109320), (2480, 103854), (2733, 94240), (2945, 87456), (2976, 86545), (3040, 84723), (3534, 72880), (3644, 70680), (3720, 69236), (4555, 56544), (4560, 56482), (4712, 54660), (4960, 51927), (5466, 47120), (5890, 43728), (7068, 36440), (7288, 35340), (7440, 34618), (8835, 29152), (9110, 28272), (9120, 28241), (9424, 27330), (10932, 23560), (11780, 21864), (13665, 18848), (14136, 18220), (14576, 17670), (14880, 17309)]