257202430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{241}}^1$

素因数の和:445

約数の個数: 64

約数和(自身を含む): 504947520

約数和(自身を除く): 247745090

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 137, 190, 205, 241, 274, 410, 482, 685, 779, 1205, 1370, 1558, 2410, 2603, 3895, 4579, 5206, 5617, 7790, 9158, 9881, 11234, 13015, 19762, 22895, 26030, 28085, 33017, 45790, 49405, 56170, 66034, 98810, 106723, 165085, 187739, 213446, 330170, 375478, 533615, 627323, 938695, 1067230, 1254646, 1353697, 1877390, 2707394, 3136615, 6273230, 6768485, 13536970, 25720243, 51440486, 128601215, 257202430]

約数ペア:

[(1, 257202430), (2, 128601215), (5, 51440486), (10, 25720243), (19, 13536970), (38, 6768485), (41, 6273230), (82, 3136615), (95, 2707394), (137, 1877390), (190, 1353697), (205, 1254646), (241, 1067230), (274, 938695), (410, 627323), (482, 533615), (685, 375478), (779, 330170), (1205, 213446), (1370, 187739), (1558, 165085), (2410, 106723), (2603, 98810), (3895, 66034), (4579, 56170), (5206, 49405), (5617, 45790), (7790, 33017), (9158, 28085), (9881, 26030), (11234, 22895), (13015, 19762)]