428855840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2879}}^1$

素因数の和:2927

約数の個数: 144

約数和(自身を含む): 1241049600

約数和(自身を除く): 812193760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 380, 392, 490, 532, 560, 608, 665, 760, 784, 931, 980, 1064, 1120, 1330, 1520, 1568, 1862, 1960, 2128, 2660, 2879, 3040, 3724, 3920, 4256, 4655, 5320, 5758, 7448, 7840, 9310, 10640, 11516, 14395, 14896, 18620, 20153, 21280, 23032, 28790, 29792, 37240, 40306, 46064, 54701, 57580, 74480, 80612, 92128, 100765, 109402, 115160, 141071, 148960, 161224, 201530, 218804, 230320, 273505, 282142, 322448, 382907, 403060, 437608, 460640, 547010, 564284, 644896, 705355, 765814, 806120, 875216, 1094020, 1128568, 1410710, 1531628, 1612240, 1750432, 1914535, 2188040, 2257136, 2680349, 2821420, 3063256, 3224480, 3829070, 4376080, 4514272, 5360698, 5642840, 6126512, 7658140, 8752160, 10721396, 11285680, 12253024, 13401745, 15316280, 21442792, 22571360, 26803490, 30632560, 42885584, 53606980, 61265120, 85771168, 107213960, 214427920, 428855840]

約数ペア:

[(1, 428855840), (2, 214427920), (4, 107213960), (5, 85771168), (7, 61265120), (8, 53606980), (10, 42885584), (14, 30632560), (16, 26803490), (19, 22571360), (20, 21442792), (28, 15316280), (32, 13401745), (35, 12253024), (38, 11285680), (40, 10721396), (49, 8752160), (56, 7658140), (70, 6126512), (76, 5642840), (80, 5360698), (95, 4514272), (98, 4376080), (112, 3829070), (133, 3224480), (140, 3063256), (152, 2821420), (160, 2680349), (190, 2257136), (196, 2188040), (224, 1914535), (245, 1750432), (266, 1612240), (280, 1531628), (304, 1410710), (380, 1128568), (392, 1094020), (490, 875216), (532, 806120), (560, 765814), (608, 705355), (665, 644896), (760, 564284), (784, 547010), (931, 460640), (980, 437608), (1064, 403060), (1120, 382907), (1330, 322448), (1520, 282142), (1568, 273505), (1862, 230320), (1960, 218804), (2128, 201530), (2660, 161224), (2879, 148960), (3040, 141071), (3724, 115160), (3920, 109402), (4256, 100765), (4655, 92128), (5320, 80612), (5758, 74480), (7448, 57580), (7840, 54701), (9310, 46064), (10640, 40306), (11516, 37240), (14395, 29792), (14896, 28790), (18620, 23032), (20153, 21280)]