78511550

素因数分解:

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

素因数の和:174

約数の個数: 72

約数和(自身を含む): 164015544

約数和(自身を除く): 85503994

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 53, 65, 86, 106, 130, 215, 265, 325, 430, 530, 559, 650, 689, 1075, 1118, 1325, 1378, 2150, 2279, 2650, 2795, 2809, 3445, 4558, 5590, 5618, 6890, 11395, 13975, 14045, 17225, 22790, 27950, 28090, 29627, 34450, 36517, 56975, 59254, 70225, 73034, 113950, 120787, 140450, 148135, 182585, 241574, 296270, 365170, 603935, 740675, 912925, 1207870, 1481350, 1570231, 1825850, 3019675, 3140462, 6039350, 7851155, 15702310, 39255775, 78511550]

約数ペア:

[(1, 78511550), (2, 39255775), (5, 15702310), (10, 7851155), (13, 6039350), (25, 3140462), (26, 3019675), (43, 1825850), (50, 1570231), (53, 1481350), (65, 1207870), (86, 912925), (106, 740675), (130, 603935), (215, 365170), (265, 296270), (325, 241574), (430, 182585), (530, 148135), (559, 140450), (650, 120787), (689, 113950), (1075, 73034), (1118, 70225), (1325, 59254), (1378, 56975), (2150, 36517), (2279, 34450), (2650, 29627), (2795, 28090), (2809, 27950), (3445, 22790), (4558, 17225), (5590, 14045), (5618, 13975), (6890, 11395)]