1800907780

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:427

約数の個数: 192

約数和(自身を含む): 4769856000

約数和(自身を除く): 2968948220

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 41, 49, 70, 76, 82, 95, 98, 133, 140, 164, 190, 196, 205, 245, 266, 287, 337, 343, 380, 410, 490, 532, 574, 665, 674, 686, 779, 820, 931, 980, 1148, 1330, 1348, 1372, 1435, 1558, 1685, 1715, 1862, 2009, 2359, 2660, 2870, 3116, 3370, 3430, 3724, 3895, 4018, 4655, 4718, 5453, 5740, 6403, 6517, 6740, 6860, 7790, 8036, 9310, 9436, 10045, 10906, 11795, 12806, 13034, 13817, 14063, 15580, 16513, 18620, 20090, 21812, 23590, 25612, 26068, 27265, 27634, 28126, 32015, 32585, 33026, 38171, 40180, 44821, 47180, 54530, 55268, 56252, 64030, 65170, 66052, 69085, 70315, 76342, 82565, 89642, 96719, 109060, 115591, 128060, 130340, 138170, 140630, 152684, 165130, 179284, 190855, 193438, 224105, 231182, 262523, 267197, 276340, 281260, 313747, 330260, 381710, 386876, 448210, 462364, 483595, 525046, 534394, 577955, 627494, 677033, 763420, 896420, 967190, 1050092, 1068788, 1155910, 1254988, 1312615, 1335985, 1354066, 1568735, 1837661, 1934380, 2196229, 2311820, 2625230, 2671970, 2708132, 3137470, 3385165, 3675322, 4392458, 4739231, 5250460, 5343940, 6274940, 6770330, 7350644, 8784916, 9188305, 9478462, 10981145, 12863627, 13540660, 18376610, 18956924, 21962290, 23696155, 25727254, 36753220, 43924580, 47392310, 51454508, 64318135, 90045389, 94784620, 128636270, 180090778, 257272540, 360181556, 450226945, 900453890, 1800907780]

約数ペア:

[(1, 1800907780), (2, 900453890), (4, 450226945), (5, 360181556), (7, 257272540), (10, 180090778), (14, 128636270), (19, 94784620), (20, 90045389), (28, 64318135), (35, 51454508), (38, 47392310), (41, 43924580), (49, 36753220), (70, 25727254), (76, 23696155), (82, 21962290), (95, 18956924), (98, 18376610), (133, 13540660), (140, 12863627), (164, 10981145), (190, 9478462), (196, 9188305), (205, 8784916), (245, 7350644), (266, 6770330), (287, 6274940), (337, 5343940), (343, 5250460), (380, 4739231), (410, 4392458), (490, 3675322), (532, 3385165), (574, 3137470), (665, 2708132), (674, 2671970), (686, 2625230), (779, 2311820), (820, 2196229), (931, 1934380), (980, 1837661), (1148, 1568735), (1330, 1354066), (1348, 1335985), (1372, 1312615), (1435, 1254988), (1558, 1155910), (1685, 1068788), (1715, 1050092), (1862, 967190), (2009, 896420), (2359, 763420), (2660, 677033), (2870, 627494), (3116, 577955), (3370, 534394), (3430, 525046), (3724, 483595), (3895, 462364), (4018, 448210), (4655, 386876), (4718, 381710), (5453, 330260), (5740, 313747), (6403, 281260), (6517, 276340), (6740, 267197), (6860, 262523), (7790, 231182), (8036, 224105), (9310, 193438), (9436, 190855), (10045, 179284), (10906, 165130), (11795, 152684), (12806, 140630), (13034, 138170), (13817, 130340), (14063, 128060), (15580, 115591), (16513, 109060), (18620, 96719), (20090, 89642), (21812, 82565), (23590, 76342), (25612, 70315), (26068, 69085), (27265, 66052), (27634, 65170), (28126, 64030), (32015, 56252), (32585, 55268), (33026, 54530), (38171, 47180), (40180, 44821)]