389928640

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1087}}^1$

素因数の和:1182

約数の個数: 112

約数和(自身を含む): 994867200

約数和(自身を除く): 604938560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 59, 64, 76, 80, 95, 118, 152, 160, 190, 236, 295, 304, 320, 380, 472, 590, 608, 760, 944, 1087, 1121, 1180, 1216, 1520, 1888, 2174, 2242, 2360, 3040, 3776, 4348, 4484, 4720, 5435, 5605, 6080, 8696, 8968, 9440, 10870, 11210, 17392, 17936, 18880, 20653, 21740, 22420, 34784, 35872, 41306, 43480, 44840, 64133, 69568, 71744, 82612, 86960, 89680, 103265, 128266, 165224, 173920, 179360, 206530, 256532, 320665, 330448, 347840, 358720, 413060, 513064, 641330, 660896, 826120, 1026128, 1218527, 1282660, 1321792, 1652240, 2052256, 2437054, 2565320, 3304480, 4104512, 4874108, 5130640, 6092635, 6608960, 9748216, 10261280, 12185270, 19496432, 20522560, 24370540, 38992864, 48741080, 77985728, 97482160, 194964320, 389928640]

約数ペア:

[(1, 389928640), (2, 194964320), (4, 97482160), (5, 77985728), (8, 48741080), (10, 38992864), (16, 24370540), (19, 20522560), (20, 19496432), (32, 12185270), (38, 10261280), (40, 9748216), (59, 6608960), (64, 6092635), (76, 5130640), (80, 4874108), (95, 4104512), (118, 3304480), (152, 2565320), (160, 2437054), (190, 2052256), (236, 1652240), (295, 1321792), (304, 1282660), (320, 1218527), (380, 1026128), (472, 826120), (590, 660896), (608, 641330), (760, 513064), (944, 413060), (1087, 358720), (1121, 347840), (1180, 330448), (1216, 320665), (1520, 256532), (1888, 206530), (2174, 179360), (2242, 173920), (2360, 165224), (3040, 128266), (3776, 103265), (4348, 89680), (4484, 86960), (4720, 82612), (5435, 71744), (5605, 69568), (6080, 64133), (8696, 44840), (8968, 43480), (9440, 41306), (10870, 35872), (11210, 34784), (17392, 22420), (17936, 21740), (18880, 20653)]