28145650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:140

約数の個数: 96

約数和(自身を含む): 61871040

約数和(自身を除く): 33725390

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 43, 50, 53, 65, 86, 95, 106, 130, 190, 215, 247, 265, 325, 430, 475, 494, 530, 559, 650, 689, 817, 950, 1007, 1075, 1118, 1235, 1325, 1378, 1634, 2014, 2150, 2279, 2470, 2650, 2795, 3445, 4085, 4558, 5035, 5590, 6175, 6890, 8170, 10070, 10621, 11395, 12350, 13091, 13975, 17225, 20425, 21242, 22790, 25175, 26182, 27950, 29627, 34450, 40850, 43301, 50350, 53105, 56975, 59254, 65455, 86602, 106210, 113950, 130910, 148135, 216505, 265525, 296270, 327275, 433010, 531050, 562913, 654550, 740675, 1082525, 1125826, 1481350, 2165050, 2814565, 5629130, 14072825, 28145650]

約数ペア:

[(1, 28145650), (2, 14072825), (5, 5629130), (10, 2814565), (13, 2165050), (19, 1481350), (25, 1125826), (26, 1082525), (38, 740675), (43, 654550), (50, 562913), (53, 531050), (65, 433010), (86, 327275), (95, 296270), (106, 265525), (130, 216505), (190, 148135), (215, 130910), (247, 113950), (265, 106210), (325, 86602), (430, 65455), (475, 59254), (494, 56975), (530, 53105), (559, 50350), (650, 43301), (689, 40850), (817, 34450), (950, 29627), (1007, 27950), (1075, 26182), (1118, 25175), (1235, 22790), (1325, 21242), (1378, 20425), (1634, 17225), (2014, 13975), (2150, 13091), (2279, 12350), (2470, 11395), (2650, 10621), (2795, 10070), (3445, 8170), (4085, 6890), (4558, 6175), (5035, 5590)]