129486520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{491}}^1$

素因数の和:868

約数の個数: 64

約数和(自身を含む): 308188800

約数和(自身を除く): 178702280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 347, 380, 491, 694, 760, 982, 1388, 1735, 1964, 2455, 2776, 3470, 3928, 4910, 6593, 6940, 9329, 9820, 13186, 13880, 18658, 19640, 26372, 32965, 37316, 46645, 52744, 65930, 74632, 93290, 131860, 170377, 186580, 263720, 340754, 373160, 681508, 851885, 1363016, 1703770, 3237163, 3407540, 6474326, 6815080, 12948652, 16185815, 25897304, 32371630, 64743260, 129486520]

約数ペア:

[(1, 129486520), (2, 64743260), (4, 32371630), (5, 25897304), (8, 16185815), (10, 12948652), (19, 6815080), (20, 6474326), (38, 3407540), (40, 3237163), (76, 1703770), (95, 1363016), (152, 851885), (190, 681508), (347, 373160), (380, 340754), (491, 263720), (694, 186580), (760, 170377), (982, 131860), (1388, 93290), (1735, 74632), (1964, 65930), (2455, 52744), (2776, 46645), (3470, 37316), (3928, 32965), (4910, 26372), (6593, 19640), (6940, 18658), (9329, 13880), (9820, 13186)]