81440970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{569}}^1$

素因数の和:959

約数の個数: 64

約数和(自身を含む): 211438080

約数和(自身を除く): 129997110

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 367, 390, 569, 734, 1101, 1138, 1707, 1835, 2202, 2845, 3414, 3670, 4771, 5505, 5690, 7397, 8535, 9542, 11010, 14313, 14794, 17070, 22191, 23855, 28626, 36985, 44382, 47710, 71565, 73970, 110955, 143130, 208823, 221910, 417646, 626469, 1044115, 1252938, 2088230, 2714699, 3132345, 5429398, 6264690, 8144097, 13573495, 16288194, 27146990, 40720485, 81440970]

約数ペア:

[(1, 81440970), (2, 40720485), (3, 27146990), (5, 16288194), (6, 13573495), (10, 8144097), (13, 6264690), (15, 5429398), (26, 3132345), (30, 2714699), (39, 2088230), (65, 1252938), (78, 1044115), (130, 626469), (195, 417646), (367, 221910), (390, 208823), (569, 143130), (734, 110955), (1101, 73970), (1138, 71565), (1707, 47710), (1835, 44382), (2202, 36985), (2845, 28626), (3414, 23855), (3670, 22191), (4771, 17070), (5505, 14794), (5690, 14313), (7397, 11010), (8535, 9542)]